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Finding the Fourth Proportional to 200,049.20, 299,670.60 and 124,938.80

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Solution

The fourth proportional to 200,049.20, 299,670.60 and 124,938.80 is: 187,156.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,049.20 : 299,670.60 = 124,938.80 : x
  2. Step 2: Convert to fraction form
    200,049.20/299,670.60 = 124,938.80/x
  3. Step 3: Cross multiply
    200,049.20x = 299,670.60 × 124,938.80
  4. Step 4: Simplify right side
    200,049.20x = 37,440,485,159.28
  5. Step 5: Solve for x
    x = 37,440,485,159.28/200,049.20
  6. Step 6: Final answer
    x = 187,156.39

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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.