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Finding the Fourth Proportional to 199,393.92, 298,388.30 and 124,549.31

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Solution

The fourth proportional to 199,393.92, 298,388.30 and 124,549.31 is: 186,385.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,393.92 : 298,388.30 = 124,549.31 : x
  2. Step 2: Convert to fraction form
    199,393.92/298,388.30 = 124,549.31/x
  3. Step 3: Cross multiply
    199,393.92x = 298,388.30 × 124,549.31
  4. Step 4: Simplify right side
    199,393.92x = 37,164,057,000.30
  5. Step 5: Solve for x
    x = 37,164,057,000.30/199,393.92
  6. Step 6: Final answer
    x = 186,385.11

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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.