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Finding the Fourth Proportional to 268,589.79, 370,654.65 and 147,743.46

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Solution

The fourth proportional to 268,589.79, 370,654.65 and 147,743.46 is: 203,886.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,589.79 : 370,654.65 = 147,743.46 : x
  2. Step 2: Convert to fraction form
    268,589.79/370,654.65 = 147,743.46/x
  3. Step 3: Cross multiply
    268,589.79x = 370,654.65 × 147,743.46
  4. Step 4: Simplify right side
    268,589.79x = 54,761,800,456.09
  5. Step 5: Solve for x
    x = 54,761,800,456.09/268,589.79
  6. Step 6: Final answer
    x = 203,886.38

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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.