Home / 283,727.25-391,546.29-156,407.40

Finding the Fourth Proportional to 283,727.25, 391,546.29 and 156,407.40

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Solution

The fourth proportional to 283,727.25, 391,546.29 and 156,407.40 is: 215,843.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,727.25 : 391,546.29 = 156,407.40 : x
  2. Step 2: Convert to fraction form
    283,727.25/391,546.29 = 156,407.40/x
  3. Step 3: Cross multiply
    283,727.25x = 391,546.29 × 156,407.40
  4. Step 4: Simplify right side
    283,727.25x = 61,240,737,198.55
  5. Step 5: Solve for x
    x = 61,240,737,198.55/283,727.25
  6. Step 6: Final answer
    x = 215,843.69

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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.