Home / 283,747.61-391,569.12-156,423.20

Finding the Fourth Proportional to 283,747.61, 391,569.12 and 156,423.20

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Solution

The fourth proportional to 283,747.61, 391,569.12 and 156,423.20 is: 215,862.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,747.61 : 391,569.12 = 156,423.20 : x
  2. Step 2: Convert to fraction form
    283,747.61/391,569.12 = 156,423.20/x
  3. Step 3: Cross multiply
    283,747.61x = 391,569.12 × 156,423.20
  4. Step 4: Simplify right side
    283,747.61x = 61,250,494,771.58
  5. Step 5: Solve for x
    x = 61,250,494,771.58/283,747.61
  6. Step 6: Final answer
    x = 215,862.59

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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.