Home / 283,712.43-391,518.99-156,385.29

Finding the Fourth Proportional to 283,712.43, 391,518.99 and 156,385.29

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Solution

The fourth proportional to 283,712.43, 391,518.99 and 156,385.29 is: 215,809.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,712.43 : 391,518.99 = 156,385.29 : x
  2. Step 2: Convert to fraction form
    283,712.43/391,518.99 = 156,385.29/x
  3. Step 3: Cross multiply
    283,712.43x = 391,518.99 × 156,385.29
  4. Step 4: Simplify right side
    283,712.43x = 61,227,810,791.66
  5. Step 5: Solve for x
    x = 61,227,810,791.66/283,712.43
  6. Step 6: Final answer
    x = 215,809.41

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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.