Home / 283,443.62-391,147.50-156,131.06

Finding the Fourth Proportional to 283,443.62, 391,147.50 and 156,131.06

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Solution

The fourth proportional to 283,443.62, 391,147.50 and 156,131.06 is: 215,458.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,443.62 : 391,147.50 = 156,131.06 : x
  2. Step 2: Convert to fraction form
    283,443.62/391,147.50 = 156,131.06/x
  3. Step 3: Cross multiply
    283,443.62x = 391,147.50 × 156,131.06
  4. Step 4: Simplify right side
    283,443.62x = 61,070,273,791.35
  5. Step 5: Solve for x
    x = 61,070,273,791.35/283,443.62
  6. Step 6: Final answer
    x = 215,458.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.