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Finding the Fourth Proportional to 248,614.80, 372,922.20 and 154,136.40

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Solution

The fourth proportional to 248,614.80, 372,922.20 and 154,136.40 is: 231,204.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,614.80 : 372,922.20 = 154,136.40 : x
  2. Step 2: Convert to fraction form
    248,614.80/372,922.20 = 154,136.40/x
  3. Step 3: Cross multiply
    248,614.80x = 372,922.20 × 154,136.40
  4. Step 4: Simplify right side
    248,614.80x = 57,480,885,388.08
  5. Step 5: Solve for x
    x = 57,480,885,388.08/248,614.80
  6. Step 6: Final answer
    x = 231,204.60

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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.