Home / 261,390.46-391,454.16-148,729.36

Finding the Fourth Proportional to 261,390.46, 391,454.16 and 148,729.36

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Solution

The fourth proportional to 261,390.46, 391,454.16 and 148,729.36 is: 222,734.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,390.46 : 391,454.16 = 148,729.36 : x
  2. Step 2: Convert to fraction form
    261,390.46/391,454.16 = 148,729.36/x
  3. Step 3: Cross multiply
    261,390.46x = 391,454.16 × 148,729.36
  4. Step 4: Simplify right side
    261,390.46x = 58,220,726,686.14
  5. Step 5: Solve for x
    x = 58,220,726,686.14/261,390.46
  6. Step 6: Final answer
    x = 222,734.70

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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.