Home / 261,847.20-391,863.60-156,741.60

Finding the Fourth Proportional to 261,847.20, 391,863.60 and 156,741.60

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Solution

The fourth proportional to 261,847.20, 391,863.60 and 156,741.60 is: 234,569.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,847.20 : 391,863.60 = 156,741.60 : x
  2. Step 2: Convert to fraction form
    261,847.20/391,863.60 = 156,741.60/x
  3. Step 3: Cross multiply
    261,847.20x = 391,863.60 × 156,741.60
  4. Step 4: Simplify right side
    261,847.20x = 61,421,327,645.76
  5. Step 5: Solve for x
    x = 61,421,327,645.76/261,847.20
  6. Step 6: Final answer
    x = 234,569.35

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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.