Home / 261,388.43-391,451.13-148,727.39

Finding the Fourth Proportional to 261,388.43, 391,451.13 and 148,727.39

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Solution

The fourth proportional to 261,388.43, 391,451.13 and 148,727.39 is: 222,731.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,388.43 : 391,451.13 = 148,727.39 : x
  2. Step 2: Convert to fraction form
    261,388.43/391,451.13 = 148,727.39/x
  3. Step 3: Cross multiply
    261,388.43x = 391,451.13 × 148,727.39
  4. Step 4: Simplify right side
    261,388.43x = 58,219,504,877.45
  5. Step 5: Solve for x
    x = 58,219,504,877.45/261,388.43
  6. Step 6: Final answer
    x = 222,731.76

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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.