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Finding the Fourth Proportional to 409,942.40, 615,067.20 and 160,803.20

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Solution

The fourth proportional to 409,942.40, 615,067.20 and 160,803.20 is: 241,265.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,942.40 : 615,067.20 = 160,803.20 : x
  2. Step 2: Convert to fraction form
    409,942.40/615,067.20 = 160,803.20/x
  3. Step 3: Cross multiply
    409,942.40x = 615,067.20 × 160,803.20
  4. Step 4: Simplify right side
    409,942.40x = 98,904,773,975.04
  5. Step 5: Solve for x
    x = 98,904,773,975.04/409,942.40
  6. Step 6: Final answer
    x = 241,265.05

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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.