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Finding the Fourth Proportional to 388,059.20, 535,585.92 and 244,897.28

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Solution

The fourth proportional to 388,059.20, 535,585.92 and 244,897.28 is: 337,998.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,059.20 : 535,585.92 = 244,897.28 : x
  2. Step 2: Convert to fraction form
    388,059.20/535,585.92 = 244,897.28/x
  3. Step 3: Cross multiply
    388,059.20x = 535,585.92 × 244,897.28
  4. Step 4: Simplify right side
    388,059.20x = 131,163,535,014.30
  5. Step 5: Solve for x
    x = 131,163,535,014.30/388,059.20
  6. Step 6: Final answer
    x = 337,998.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.