Home / 347,383.20-521,132.40-147,799.20

Finding the Fourth Proportional to 347,383.20, 521,132.40 and 147,799.20

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Solution

The fourth proportional to 347,383.20, 521,132.40 and 147,799.20 is: 221,723.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,383.20 : 521,132.40 = 147,799.20 : x
  2. Step 2: Convert to fraction form
    347,383.20/521,132.40 = 147,799.20/x
  3. Step 3: Cross multiply
    347,383.20x = 521,132.40 × 147,799.20
  4. Step 4: Simplify right side
    347,383.20x = 77,022,951,814.08
  5. Step 5: Solve for x
    x = 77,022,951,814.08/347,383.20
  6. Step 6: Final answer
    x = 221,723.31

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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.