Home / 283,840.79-391,691.88-156,516.35

Finding the Fourth Proportional to 283,840.79, 391,691.88 and 156,516.35

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Solution

The fourth proportional to 283,840.79, 391,691.88 and 156,516.35 is: 215,987.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,840.79 : 391,691.88 = 156,516.35 : x
  2. Step 2: Convert to fraction form
    283,840.79/391,691.88 = 156,516.35/x
  3. Step 3: Cross multiply
    283,840.79x = 391,691.88 × 156,516.35
  4. Step 4: Simplify right side
    283,840.79x = 61,306,181,423.78
  5. Step 5: Solve for x
    x = 61,306,181,423.78/283,840.79
  6. Step 6: Final answer
    x = 215,987.92

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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.