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Finding the Fourth Proportional to 121,340.52, 182,010.78 and 38,241

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Solution

The fourth proportional to 121,340.52, 182,010.78 and 38,241 is: 57,361.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,340.52 : 182,010.78 = 38,241 : x
  2. Step 2: Convert to fraction form
    121,340.52/182,010.78 = 38,241/x
  3. Step 3: Cross multiply
    121,340.52x = 182,010.78 × 38,241
  4. Step 4: Simplify right side
    121,340.52x = 6,960,274,237.98
  5. Step 5: Solve for x
    x = 6,960,274,237.98/121,340.52
  6. Step 6: Final answer
    x = 57,361.50

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1.5x scale

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.