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Finding the Fourth Proportional to 439,439.70, 659,159.55 and 202,712.34

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Solution

The fourth proportional to 439,439.70, 659,159.55 and 202,712.34 is: 304,068.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,439.70 : 659,159.55 = 202,712.34 : x
  2. Step 2: Convert to fraction form
    439,439.70/659,159.55 = 202,712.34/x
  3. Step 3: Cross multiply
    439,439.70x = 659,159.55 × 202,712.34
  4. Step 4: Simplify right side
    439,439.70x = 133,619,774,813.85
  5. Step 5: Solve for x
    x = 133,619,774,813.85/439,439.70
  6. Step 6: Final answer
    x = 304,068.51

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.