Home / 403,717.16-557,131.38-231,641.96

Finding the Fourth Proportional to 403,717.16, 557,131.38 and 231,641.96

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Solution

The fourth proportional to 403,717.16, 557,131.38 and 231,641.96 is: 319,666.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,717.16 : 557,131.38 = 231,641.96 : x
  2. Step 2: Convert to fraction form
    403,717.16/557,131.38 = 231,641.96/x
  3. Step 3: Cross multiply
    403,717.16x = 557,131.38 × 231,641.96
  4. Step 4: Simplify right side
    403,717.16x = 129,055,004,840.71
  5. Step 5: Solve for x
    x = 129,055,004,840.71/403,717.16
  6. Step 6: Final answer
    x = 319,666.88

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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.