Home / 283,627.59-391,408.76-156,307.83

Finding the Fourth Proportional to 283,627.59, 391,408.76 and 156,307.83

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Solution

The fourth proportional to 283,627.59, 391,408.76 and 156,307.83 is: 215,706.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,627.59 : 391,408.76 = 156,307.83 : x
  2. Step 2: Convert to fraction form
    283,627.59/391,408.76 = 156,307.83/x
  3. Step 3: Cross multiply
    283,627.59x = 391,408.76 × 156,307.83
  4. Step 4: Simplify right side
    283,627.59x = 61,180,253,137.05
  5. Step 5: Solve for x
    x = 61,180,253,137.05/283,627.59
  6. Step 6: Final answer
    x = 215,706.28

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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.