Home / 261,387.43-391,449.63-148,726.39

Finding the Fourth Proportional to 261,387.43, 391,449.63 and 148,726.39

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Solution

The fourth proportional to 261,387.43, 391,449.63 and 148,726.39 is: 222,730.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,387.43 : 391,449.63 = 148,726.39 : x
  2. Step 2: Convert to fraction form
    261,387.43/391,449.63 = 148,726.39/x
  3. Step 3: Cross multiply
    261,387.43x = 391,449.63 × 148,726.39
  4. Step 4: Simplify right side
    261,387.43x = 58,218,890,336.74
  5. Step 5: Solve for x
    x = 58,218,890,336.74/261,387.43
  6. Step 6: Final answer
    x = 222,730.26

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1.5x scale

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.