Home / 261,198.20-391,780.86-155,937.92

Finding the Fourth Proportional to 261,198.20, 391,780.86 and 155,937.92

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Solution

The fourth proportional to 261,198.20, 391,780.86 and 155,937.92 is: 233,897.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,198.20 : 391,780.86 = 155,937.92 : x
  2. Step 2: Convert to fraction form
    261,198.20/391,780.86 = 155,937.92/x
  3. Step 3: Cross multiply
    261,198.20x = 391,780.86 × 155,937.92
  4. Step 4: Simplify right side
    261,198.20x = 61,093,492,404.21
  5. Step 5: Solve for x
    x = 61,093,492,404.21/261,198.20
  6. Step 6: Final answer
    x = 233,897.07

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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.