Home / 283,694.12-391,493.04-156,381.56

Finding the Fourth Proportional to 283,694.12, 391,493.04 and 156,381.56

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Solution

The fourth proportional to 283,694.12, 391,493.04 and 156,381.56 is: 215,803.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,694.12 : 391,493.04 = 156,381.56 : x
  2. Step 2: Convert to fraction form
    283,694.12/391,493.04 = 156,381.56/x
  3. Step 3: Cross multiply
    283,694.12x = 391,493.04 × 156,381.56
  4. Step 4: Simplify right side
    283,694.12x = 61,222,292,324.34
  5. Step 5: Solve for x
    x = 61,222,292,324.34/283,694.12
  6. Step 6: Final answer
    x = 215,803.88

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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.