Home / 288,747.20-432,991.20-111,195.20

Finding the Fourth Proportional to 288,747.20, 432,991.20 and 111,195.20

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Solution

The fourth proportional to 288,747.20, 432,991.20 and 111,195.20 is: 166,742.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,747.20 : 432,991.20 = 111,195.20 : x
  2. Step 2: Convert to fraction form
    288,747.20/432,991.20 = 111,195.20/x
  3. Step 3: Cross multiply
    288,747.20x = 432,991.20 × 111,195.20
  4. Step 4: Simplify right side
    288,747.20x = 48,146,543,082.24
  5. Step 5: Solve for x
    x = 48,146,543,082.24/288,747.20
  6. Step 6: Final answer
    x = 166,742.89

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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.