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Finding the Fourth Proportional to 409,958.40, 615,091.20 and 160,819.20

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Solution

The fourth proportional to 409,958.40, 615,091.20 and 160,819.20 is: 241,289.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,958.40 : 615,091.20 = 160,819.20 : x
  2. Step 2: Convert to fraction form
    409,958.40/615,091.20 = 160,819.20/x
  3. Step 3: Cross multiply
    409,958.40x = 615,091.20 × 160,819.20
  4. Step 4: Simplify right side
    409,958.40x = 98,918,474,711.04
  5. Step 5: Solve for x
    x = 98,918,474,711.04/409,958.40
  6. Step 6: Final answer
    x = 241,289.05

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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.