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Finding the Fourth Proportional to 272,512.68, 408,665.34 and 124,665

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Solution

The fourth proportional to 272,512.68, 408,665.34 and 124,665 is: 186,950.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,512.68 : 408,665.34 = 124,665 : x
  2. Step 2: Convert to fraction form
    272,512.68/408,665.34 = 124,665/x
  3. Step 3: Cross multiply
    272,512.68x = 408,665.34 × 124,665
  4. Step 4: Simplify right side
    272,512.68x = 50,946,264,611.10
  5. Step 5: Solve for x
    x = 50,946,264,611.10/272,512.68
  6. Step 6: Final answer
    x = 186,950.07

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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.