Home / 261,261.32-391,842.76-101,336.95

Finding the Fourth Proportional to 261,261.32, 391,842.76 and 101,336.95

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Solution

The fourth proportional to 261,261.32, 391,842.76 and 101,336.95 is: 151,986.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,261.32 : 391,842.76 = 101,336.95 : x
  2. Step 2: Convert to fraction form
    261,261.32/391,842.76 = 101,336.95/x
  3. Step 3: Cross multiply
    261,261.32x = 391,842.76 × 101,336.95
  4. Step 4: Simplify right side
    261,261.32x = 39,708,150,177.98
  5. Step 5: Solve for x
    x = 39,708,150,177.98/261,261.32
  6. Step 6: Final answer
    x = 151,986.33

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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.