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Finding the Fourth Proportional to 331,967.60, 498,113.40 and 154,383.20

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Solution

The fourth proportional to 331,967.60, 498,113.40 and 154,383.20 is: 231,650.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,967.60 : 498,113.40 = 154,383.20 : x
  2. Step 2: Convert to fraction form
    331,967.60/498,113.40 = 154,383.20/x
  3. Step 3: Cross multiply
    331,967.60x = 498,113.40 × 154,383.20
  4. Step 4: Simplify right side
    331,967.60x = 76,900,340,654.88
  5. Step 5: Solve for x
    x = 76,900,340,654.88/331,967.60
  6. Step 6: Final answer
    x = 231,650.14

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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.