Home / 261,178.86-391,215.33-216,700.14

Finding the Fourth Proportional to 261,178.86, 391,215.33 and 216,700.14

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Solution

The fourth proportional to 261,178.86, 391,215.33 and 216,700.14 is: 324,591.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,178.86 : 391,215.33 = 216,700.14 : x
  2. Step 2: Convert to fraction form
    261,178.86/391,215.33 = 216,700.14/x
  3. Step 3: Cross multiply
    261,178.86x = 391,215.33 × 216,700.14
  4. Step 4: Simplify right side
    261,178.86x = 84,776,416,781.15
  5. Step 5: Solve for x
    x = 84,776,416,781.15/261,178.86
  6. Step 6: Final answer
    x = 324,591.42

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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.