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Finding the Fourth Proportional to 324,769.32, 487,252.40 and 147,228.66

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Solution

The fourth proportional to 324,769.32, 487,252.40 and 147,228.66 is: 220,887.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,769.32 : 487,252.40 = 147,228.66 : x
  2. Step 2: Convert to fraction form
    324,769.32/487,252.40 = 147,228.66/x
  3. Step 3: Cross multiply
    324,769.32x = 487,252.40 × 147,228.66
  4. Step 4: Simplify right side
    324,769.32x = 71,737,517,197.64
  5. Step 5: Solve for x
    x = 71,737,517,197.64/324,769.32
  6. Step 6: Final answer
    x = 220,887.60

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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.