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Finding the Fourth Proportional to 220,321.38, 304,045.32 and 119,719.38

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Solution

The fourth proportional to 220,321.38, 304,045.32 and 119,719.38 is: 165,213.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,321.38 : 304,045.32 = 119,719.38 : x
  2. Step 2: Convert to fraction form
    220,321.38/304,045.32 = 119,719.38/x
  3. Step 3: Cross multiply
    220,321.38x = 304,045.32 × 119,719.38
  4. Step 4: Simplify right side
    220,321.38x = 36,400,117,202.30
  5. Step 5: Solve for x
    x = 36,400,117,202.30/220,321.38
  6. Step 6: Final answer
    x = 165,213.73

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1.5x scale

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.