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Finding the Fourth Proportional to 268,306.76, 370,245.43 and 147,445.45

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Solution

The fourth proportional to 268,306.76, 370,245.43 and 147,445.45 is: 203,464.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,306.76 : 370,245.43 = 147,445.45 : x
  2. Step 2: Convert to fraction form
    268,306.76/370,245.43 = 147,445.45/x
  3. Step 3: Cross multiply
    268,306.76x = 370,245.43 × 147,445.45
  4. Step 4: Simplify right side
    268,306.76x = 54,591,003,295.49
  5. Step 5: Solve for x
    x = 54,591,003,295.49/268,306.76
  6. Step 6: Final answer
    x = 203,464.88

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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.