Home / 261,258.64-391,560.04-141,310.80

Finding the Fourth Proportional to 261,258.64, 391,560.04 and 141,310.80

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Solution

The fourth proportional to 261,258.64, 391,560.04 and 141,310.80 is: 211,788.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,258.64 : 391,560.04 = 141,310.80 : x
  2. Step 2: Convert to fraction form
    261,258.64/391,560.04 = 141,310.80/x
  3. Step 3: Cross multiply
    261,258.64x = 391,560.04 × 141,310.80
  4. Step 4: Simplify right side
    261,258.64x = 55,331,662,500.43
  5. Step 5: Solve for x
    x = 55,331,662,500.43/261,258.64
  6. Step 6: Final answer
    x = 211,788.83

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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.