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Finding the Fourth Proportional to 457,254.22, 631,010.70 and 253,318.38

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Solution

The fourth proportional to 457,254.22, 631,010.70 and 253,318.38 is: 349,579.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,254.22 : 631,010.70 = 253,318.38 : x
  2. Step 2: Convert to fraction form
    457,254.22/631,010.70 = 253,318.38/x
  3. Step 3: Cross multiply
    457,254.22x = 631,010.70 × 253,318.38
  4. Step 4: Simplify right side
    457,254.22x = 159,846,608,286.67
  5. Step 5: Solve for x
    x = 159,846,608,286.67/457,254.22
  6. Step 6: Final answer
    x = 349,579.30

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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.