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Finding the Fourth Proportional to 248,614.60, 372,921.90 and 154,136.20

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Solution

The fourth proportional to 248,614.60, 372,921.90 and 154,136.20 is: 231,204.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,614.60 : 372,921.90 = 154,136.20 : x
  2. Step 2: Convert to fraction form
    248,614.60/372,921.90 = 154,136.20/x
  3. Step 3: Cross multiply
    248,614.60x = 372,921.90 × 154,136.20
  4. Step 4: Simplify right side
    248,614.60x = 57,480,764,562.78
  5. Step 5: Solve for x
    x = 57,480,764,562.78/248,614.60
  6. Step 6: Final answer
    x = 231,204.30

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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.