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Finding the Fourth Proportional to 457,403.51, 631,207.42 and 253,452.65

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Solution

The fourth proportional to 457,403.51, 631,207.42 and 253,452.65 is: 349,759.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,403.51 : 631,207.42 = 253,452.65 : x
  2. Step 2: Convert to fraction form
    457,403.51/631,207.42 = 253,452.65/x
  3. Step 3: Cross multiply
    457,403.51x = 631,207.42 × 253,452.65
  4. Step 4: Simplify right side
    457,403.51x = 159,981,189,508.99
  5. Step 5: Solve for x
    x = 159,981,189,508.99/457,403.51
  6. Step 6: Final answer
    x = 349,759.42

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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.