Home / 283,610.88-391,385.60-156,291.04

Finding the Fourth Proportional to 283,610.88, 391,385.60 and 156,291.04

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Solution

The fourth proportional to 283,610.88, 391,385.60 and 156,291.04 is: 215,683.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,610.88 : 391,385.60 = 156,291.04 : x
  2. Step 2: Convert to fraction form
    283,610.88/391,385.60 = 156,291.04/x
  3. Step 3: Cross multiply
    283,610.88x = 391,385.60 × 156,291.04
  4. Step 4: Simplify right side
    283,610.88x = 61,170,062,465.02
  5. Step 5: Solve for x
    x = 61,170,062,465.02/283,610.88
  6. Step 6: Final answer
    x = 215,683.06

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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.