Home / 261,849.20-391,866.60-156,743.60

Finding the Fourth Proportional to 261,849.20, 391,866.60 and 156,743.60

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Solution

The fourth proportional to 261,849.20, 391,866.60 and 156,743.60 is: 234,572.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,849.20 : 391,866.60 = 156,743.60 : x
  2. Step 2: Convert to fraction form
    261,849.20/391,866.60 = 156,743.60/x
  3. Step 3: Cross multiply
    261,849.20x = 391,866.60 × 156,743.60
  4. Step 4: Simplify right side
    261,849.20x = 61,422,581,603.76
  5. Step 5: Solve for x
    x = 61,422,581,603.76/261,849.20
  6. Step 6: Final answer
    x = 234,572.35

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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.