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Finding the Fourth Proportional to 268,538.64, 370,574.84 and 147,679.55

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Solution

The fourth proportional to 268,538.64, 370,574.84 and 147,679.55 is: 203,793.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,538.64 : 370,574.84 = 147,679.55 : x
  2. Step 2: Convert to fraction form
    268,538.64/370,574.84 = 147,679.55/x
  3. Step 3: Cross multiply
    268,538.64x = 370,574.84 × 147,679.55
  4. Step 4: Simplify right side
    268,538.64x = 54,726,324,874.12
  5. Step 5: Solve for x
    x = 54,726,324,874.12/268,538.64
  6. Step 6: Final answer
    x = 203,793.11

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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.