Home / 261,003.08-391,443.37-147,200.11

Finding the Fourth Proportional to 261,003.08, 391,443.37 and 147,200.11

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Solution

The fourth proportional to 261,003.08, 391,443.37 and 147,200.11 is: 220,765.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,003.08 : 391,443.37 = 147,200.11 : x
  2. Step 2: Convert to fraction form
    261,003.08/391,443.37 = 147,200.11/x
  3. Step 3: Cross multiply
    261,003.08x = 391,443.37 × 147,200.11
  4. Step 4: Simplify right side
    261,003.08x = 57,620,505,776.16
  5. Step 5: Solve for x
    x = 57,620,505,776.16/261,003.08
  6. Step 6: Final answer
    x = 220,765.61

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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.