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Finding the Fourth Proportional to 605,227.95, 907,961.55 and 178,771.20

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Solution

The fourth proportional to 605,227.95, 907,961.55 and 178,771.20 is: 268,192.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,227.95 : 907,961.55 = 178,771.20 : x
  2. Step 2: Convert to fraction form
    605,227.95/907,961.55 = 178,771.20/x
  3. Step 3: Cross multiply
    605,227.95x = 907,961.55 × 178,771.20
  4. Step 4: Simplify right side
    605,227.95x = 162,317,375,847.36
  5. Step 5: Solve for x
    x = 162,317,375,847.36/605,227.95
  6. Step 6: Final answer
    x = 268,192.13

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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.