Home / 331,610.20-497,609.70-121,269.40

Finding the Fourth Proportional to 331,610.20, 497,609.70 and 121,269.40

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Solution

The fourth proportional to 331,610.20, 497,609.70 and 121,269.40 is: 181,975.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,610.20 : 497,609.70 = 121,269.40 : x
  2. Step 2: Convert to fraction form
    331,610.20/497,609.70 = 121,269.40/x
  3. Step 3: Cross multiply
    331,610.20x = 497,609.70 × 121,269.40
  4. Step 4: Simplify right side
    331,610.20x = 60,344,829,753.18
  5. Step 5: Solve for x
    x = 60,344,829,753.18/331,610.20
  6. Step 6: Final answer
    x = 181,975.19

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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.