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Finding the Fourth Proportional to 265,849.95, 398,850.26 and 108,191.55

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Solution

The fourth proportional to 265,849.95, 398,850.26 and 108,191.55 is: 162,317.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,849.95 : 398,850.26 = 108,191.55 : x
  2. Step 2: Convert to fraction form
    265,849.95/398,850.26 = 108,191.55/x
  3. Step 3: Cross multiply
    265,849.95x = 398,850.26 × 108,191.55
  4. Step 4: Simplify right side
    265,849.95x = 43,152,227,306.35
  5. Step 5: Solve for x
    x = 43,152,227,306.35/265,849.95
  6. Step 6: Final answer
    x = 162,317.98

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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.