Home / 257,942.20-386,913.30-194,956.60

Finding the Fourth Proportional to 257,942.20, 386,913.30 and 194,956.60

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Solution

The fourth proportional to 257,942.20, 386,913.30 and 194,956.60 is: 292,434.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,942.20 : 386,913.30 = 194,956.60 : x
  2. Step 2: Convert to fraction form
    257,942.20/386,913.30 = 194,956.60/x
  3. Step 3: Cross multiply
    257,942.20x = 386,913.30 × 194,956.60
  4. Step 4: Simplify right side
    257,942.20x = 75,431,301,462.78
  5. Step 5: Solve for x
    x = 75,431,301,462.78/257,942.20
  6. Step 6: Final answer
    x = 292,434.90

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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.