Home / 283,627.98-391,414.82-156,311.78

Finding the Fourth Proportional to 283,627.98, 391,414.82 and 156,311.78

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Solution

The fourth proportional to 283,627.98, 391,414.82 and 156,311.78 is: 215,714.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,627.98 : 391,414.82 = 156,311.78 : x
  2. Step 2: Convert to fraction form
    283,627.98/391,414.82 = 156,311.78/x
  3. Step 3: Cross multiply
    283,627.98x = 391,414.82 × 156,311.78
  4. Step 4: Simplify right side
    283,627.98x = 61,182,744,493.95
  5. Step 5: Solve for x
    x = 61,182,744,493.95/283,627.98
  6. Step 6: Final answer
    x = 215,714.77

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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.