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Finding the Fourth Proportional to 269,775.28, 372,310.50 and 148,939.84

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Solution

The fourth proportional to 269,775.28, 372,310.50 and 148,939.84 is: 205,548.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,775.28 : 372,310.50 = 148,939.84 : x
  2. Step 2: Convert to fraction form
    269,775.28/372,310.50 = 148,939.84/x
  3. Step 3: Cross multiply
    269,775.28x = 372,310.50 × 148,939.84
  4. Step 4: Simplify right side
    269,775.28x = 55,451,866,300.32
  5. Step 5: Solve for x
    x = 55,451,866,300.32/269,775.28
  6. Step 6: Final answer
    x = 205,548.36

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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.