Home / 439,411.10-659,116.65-203,215.10

Finding the Fourth Proportional to 439,411.10, 659,116.65 and 203,215.10

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Solution

The fourth proportional to 439,411.10, 659,116.65 and 203,215.10 is: 304,822.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,411.10 : 659,116.65 = 203,215.10 : x
  2. Step 2: Convert to fraction form
    439,411.10/659,116.65 = 203,215.10/x
  3. Step 3: Cross multiply
    439,411.10x = 659,116.65 × 203,215.10
  4. Step 4: Simplify right side
    439,411.10x = 133,942,455,941.42
  5. Step 5: Solve for x
    x = 133,942,455,941.42/439,411.10
  6. Step 6: Final answer
    x = 304,822.65

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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.