Home / 261,284.15-391,884.27-71,700.24

Finding the Fourth Proportional to 261,284.15, 391,884.27 and 71,700.24

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Solution

The fourth proportional to 261,284.15, 391,884.27 and 71,700.24 is: 107,538.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,284.15 : 391,884.27 = 71,700.24 : x
  2. Step 2: Convert to fraction form
    261,284.15/391,884.27 = 71,700.24/x
  3. Step 3: Cross multiply
    261,284.15x = 391,884.27 × 71,700.24
  4. Step 4: Simplify right side
    261,284.15x = 28,098,196,211.22
  5. Step 5: Solve for x
    x = 28,098,196,211.22/261,284.15
  6. Step 6: Final answer
    x = 107,538.85

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1.5x scale

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.