Home / 268,654.74-402,982.38-100,172.49

Finding the Fourth Proportional to 268,654.74, 402,982.38 and 100,172.49

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Solution

The fourth proportional to 268,654.74, 402,982.38 and 100,172.49 is: 150,258.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,654.74 : 402,982.38 = 100,172.49 : x
  2. Step 2: Convert to fraction form
    268,654.74/402,982.38 = 100,172.49/x
  3. Step 3: Cross multiply
    268,654.74x = 402,982.38 × 100,172.49
  4. Step 4: Simplify right side
    268,654.74x = 40,367,748,430.73
  5. Step 5: Solve for x
    x = 40,367,748,430.73/268,654.74
  6. Step 6: Final answer
    x = 150,258.84

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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.