Home / 283,729.46-391,542.42-156,402.32

Finding the Fourth Proportional to 283,729.46, 391,542.42 and 156,402.32

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Solution

The fourth proportional to 283,729.46, 391,542.42 and 156,402.32 is: 215,832.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,729.46 : 391,542.42 = 156,402.32 : x
  2. Step 2: Convert to fraction form
    283,729.46/391,542.42 = 156,402.32/x
  3. Step 3: Cross multiply
    283,729.46x = 391,542.42 × 156,402.32
  4. Step 4: Simplify right side
    283,729.46x = 61,238,142,866.41
  5. Step 5: Solve for x
    x = 61,238,142,866.41/283,729.46
  6. Step 6: Final answer
    x = 215,832.87

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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.