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Finding the Fourth Proportional to 457,452.92, 631,286.51 and 253,507.20

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Solution

The fourth proportional to 457,452.92, 631,286.51 and 253,507.20 is: 349,840.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,452.92 : 631,286.51 = 253,507.20 : x
  2. Step 2: Convert to fraction form
    457,452.92/631,286.51 = 253,507.20/x
  3. Step 3: Cross multiply
    457,452.92x = 631,286.51 × 253,507.20
  4. Step 4: Simplify right side
    457,452.92x = 160,035,675,547.87
  5. Step 5: Solve for x
    x = 160,035,675,547.87/457,452.92
  6. Step 6: Final answer
    x = 349,840.76

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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.