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Finding the Fourth Proportional to 605,258.80, 908,082.60 and 268,169.20

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Solution

The fourth proportional to 605,258.80, 908,082.60 and 268,169.20 is: 402,339.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,258.80 : 908,082.60 = 268,169.20 : x
  2. Step 2: Convert to fraction form
    605,258.80/908,082.60 = 268,169.20/x
  3. Step 3: Cross multiply
    605,258.80x = 908,082.60 × 268,169.20
  4. Step 4: Simplify right side
    605,258.80x = 243,519,784,375.92
  5. Step 5: Solve for x
    x = 243,519,784,375.92/605,258.80
  6. Step 6: Final answer
    x = 402,339.93

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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.