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Finding the Fourth Proportional to 457,506.28, 631,358.65 and 253,587.83

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Solution

The fourth proportional to 457,506.28, 631,358.65 and 253,587.83 is: 349,951.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,506.28 : 631,358.65 = 253,587.83 : x
  2. Step 2: Convert to fraction form
    457,506.28/631,358.65 = 253,587.83/x
  3. Step 3: Cross multiply
    457,506.28x = 631,358.65 × 253,587.83
  4. Step 4: Simplify right side
    457,506.28x = 160,104,870,716.81
  5. Step 5: Solve for x
    x = 160,104,870,716.81/457,506.28
  6. Step 6: Final answer
    x = 349,951.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.