Home / 261,034.10-391,551.15-257,534.90

Finding the Fourth Proportional to 261,034.10, 391,551.15 and 257,534.90

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Solution

The fourth proportional to 261,034.10, 391,551.15 and 257,534.90 is: 386,302.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,034.10 : 391,551.15 = 257,534.90 : x
  2. Step 2: Convert to fraction form
    261,034.10/391,551.15 = 257,534.90/x
  3. Step 3: Cross multiply
    261,034.10x = 391,551.15 × 257,534.90
  4. Step 4: Simplify right side
    261,034.10x = 100,838,086,260.14
  5. Step 5: Solve for x
    x = 100,838,086,260.14/261,034.10
  6. Step 6: Final answer
    x = 386,302.35

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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.