Home / 283,445.53-391,154.84-156,121.12

Finding the Fourth Proportional to 283,445.53, 391,154.84 and 156,121.12

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Solution

The fourth proportional to 283,445.53, 391,154.84 and 156,121.12 is: 215,447.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,445.53 : 391,154.84 = 156,121.12 : x
  2. Step 2: Convert to fraction form
    283,445.53/391,154.84 = 156,121.12/x
  3. Step 3: Cross multiply
    283,445.53x = 391,154.84 × 156,121.12
  4. Step 4: Simplify right side
    283,445.53x = 61,067,531,714.22
  5. Step 5: Solve for x
    x = 61,067,531,714.22/283,445.53
  6. Step 6: Final answer
    x = 215,447.15

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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.