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Finding the Fourth Proportional to 362,660.28, 543,770.50 and 138,035.94

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Solution

The fourth proportional to 362,660.28, 543,770.50 and 138,035.94 is: 206,970.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,660.28 : 543,770.50 = 138,035.94 : x
  2. Step 2: Convert to fraction form
    362,660.28/543,770.50 = 138,035.94/x
  3. Step 3: Cross multiply
    362,660.28x = 543,770.50 × 138,035.94
  4. Step 4: Simplify right side
    362,660.28x = 75,059,872,111.77
  5. Step 5: Solve for x
    x = 75,059,872,111.77/362,660.28
  6. Step 6: Final answer
    x = 206,970.20

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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.