Home / 457,731.16-631,668.90-253,781.44

Finding the Fourth Proportional to 457,731.16, 631,668.90 and 253,781.44

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Solution

The fourth proportional to 457,731.16, 631,668.90 and 253,781.44 is: 350,218.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,731.16 : 631,668.90 = 253,781.44 : x
  2. Step 2: Convert to fraction form
    457,731.16/631,668.90 = 253,781.44/x
  3. Step 3: Cross multiply
    457,731.16x = 631,668.90 × 253,781.44
  4. Step 4: Simplify right side
    457,731.16x = 160,305,843,045.22
  5. Step 5: Solve for x
    x = 160,305,843,045.22/457,731.16
  6. Step 6: Final answer
    x = 350,218.33

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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.