Home / 239,417.20-330,397.87-131,991.02

Finding the Fourth Proportional to 239,417.20, 330,397.87 and 131,991.02

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Solution

The fourth proportional to 239,417.20, 330,397.87 and 131,991.02 is: 182,148.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,417.20 : 330,397.87 = 131,991.02 : x
  2. Step 2: Convert to fraction form
    239,417.20/330,397.87 = 131,991.02/x
  3. Step 3: Cross multiply
    239,417.20x = 330,397.87 × 131,991.02
  4. Step 4: Simplify right side
    239,417.20x = 43,609,550,215.14
  5. Step 5: Solve for x
    x = 43,609,550,215.14/239,417.20
  6. Step 6: Final answer
    x = 182,148.78

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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.