Home / 331,472.40-497,280.60-121,110

Finding the Fourth Proportional to 331,472.40, 497,280.60 and 121,110

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Solution

The fourth proportional to 331,472.40, 497,280.60 and 121,110 is: 181,691.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,472.40 : 497,280.60 = 121,110 : x
  2. Step 2: Convert to fraction form
    331,472.40/497,280.60 = 121,110/x
  3. Step 3: Cross multiply
    331,472.40x = 497,280.60 × 121,110
  4. Step 4: Simplify right side
    331,472.40x = 60,225,653,466
  5. Step 5: Solve for x
    x = 60,225,653,466/331,472.40
  6. Step 6: Final answer
    x = 181,691.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.