Home / 261,481.20-391,877.14-103,623.52

Finding the Fourth Proportional to 261,481.20, 391,877.14 and 103,623.52

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Solution

The fourth proportional to 261,481.20, 391,877.14 and 103,623.52 is: 155,298.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,481.20 : 391,877.14 = 103,623.52 : x
  2. Step 2: Convert to fraction form
    261,481.20/391,877.14 = 103,623.52/x
  3. Step 3: Cross multiply
    261,481.20x = 391,877.14 × 103,623.52
  4. Step 4: Simplify right side
    261,481.20x = 40,607,688,654.33
  5. Step 5: Solve for x
    x = 40,607,688,654.33/261,481.20
  6. Step 6: Final answer
    x = 155,298.69

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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.