Home / 283,393.03-391,086.08-156,078.04

Finding the Fourth Proportional to 283,393.03, 391,086.08 and 156,078.04

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Solution

The fourth proportional to 283,393.03, 391,086.08 and 156,078.04 is: 215,389.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,393.03 : 391,086.08 = 156,078.04 : x
  2. Step 2: Convert to fraction form
    283,393.03/391,086.08 = 156,078.04/x
  3. Step 3: Cross multiply
    283,393.03x = 391,086.08 × 156,078.04
  4. Step 4: Simplify right side
    283,393.03x = 61,039,948,837.68
  5. Step 5: Solve for x
    x = 61,039,948,837.68/283,393.03
  6. Step 6: Final answer
    x = 215,389.73

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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.