Home / 378,965.28-568,447.95-112,729.62

Finding the Fourth Proportional to 378,965.28, 568,447.95 and 112,729.62

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Solution

The fourth proportional to 378,965.28, 568,447.95 and 112,729.62 is: 169,094.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,965.28 : 568,447.95 = 112,729.62 : x
  2. Step 2: Convert to fraction form
    378,965.28/568,447.95 = 112,729.62/x
  3. Step 3: Cross multiply
    378,965.28x = 568,447.95 × 112,729.62
  4. Step 4: Simplify right side
    378,965.28x = 64,080,921,393.28
  5. Step 5: Solve for x
    x = 64,080,921,393.28/378,965.28
  6. Step 6: Final answer
    x = 169,094.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.