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Finding the Fourth Proportional to 457,665.76, 631,520.28 and 253,714.76

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Solution

The fourth proportional to 457,665.76, 631,520.28 and 253,714.76 is: 350,093.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,665.76 : 631,520.28 = 253,714.76 : x
  2. Step 2: Convert to fraction form
    457,665.76/631,520.28 = 253,714.76/x
  3. Step 3: Cross multiply
    457,665.76x = 631,520.28 × 253,714.76
  4. Step 4: Simplify right side
    457,665.76x = 160,226,016,275.33
  5. Step 5: Solve for x
    x = 160,226,016,275.33/457,665.76
  6. Step 6: Final answer
    x = 350,093.96

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1.5x scale

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.