Home / 283,709.43-391,514.85-156,382.29

Finding the Fourth Proportional to 283,709.43, 391,514.85 and 156,382.29

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Solution

The fourth proportional to 283,709.43, 391,514.85 and 156,382.29 is: 215,805.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,709.43 : 391,514.85 = 156,382.29 : x
  2. Step 2: Convert to fraction form
    283,709.43/391,514.85 = 156,382.29/x
  3. Step 3: Cross multiply
    283,709.43x = 391,514.85 × 156,382.29
  4. Step 4: Simplify right side
    283,709.43x = 61,225,988,812.01
  5. Step 5: Solve for x
    x = 61,225,988,812.01/283,709.43
  6. Step 6: Final answer
    x = 215,805.27

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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.