Home / 403,948.56-557,359.20-231,856

Finding the Fourth Proportional to 403,948.56, 557,359.20 and 231,856

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Solution

The fourth proportional to 403,948.56, 557,359.20 and 231,856 is: 319,909.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,948.56 : 557,359.20 = 231,856 : x
  2. Step 2: Convert to fraction form
    403,948.56/557,359.20 = 231,856/x
  3. Step 3: Cross multiply
    403,948.56x = 557,359.20 × 231,856
  4. Step 4: Simplify right side
    403,948.56x = 129,227,074,675.20
  5. Step 5: Solve for x
    x = 129,227,074,675.20/403,948.56
  6. Step 6: Final answer
    x = 319,909.73

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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.