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Finding the Fourth Proportional to 605,256.80, 908,079.60 and 268,167.20

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Solution

The fourth proportional to 605,256.80, 908,079.60 and 268,167.20 is: 402,336.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,256.80 : 908,079.60 = 268,167.20 : x
  2. Step 2: Convert to fraction form
    605,256.80/908,079.60 = 268,167.20/x
  3. Step 3: Cross multiply
    605,256.80x = 908,079.60 × 268,167.20
  4. Step 4: Simplify right side
    605,256.80x = 243,517,163,709.12
  5. Step 5: Solve for x
    x = 243,517,163,709.12/605,256.80
  6. Step 6: Final answer
    x = 402,336.93

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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.