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Finding the Fourth Proportional to 240,382.54, 331,737.94 and 138,405.46

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Solution

The fourth proportional to 240,382.54, 331,737.94 and 138,405.46 is: 191,005.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,382.54 : 331,737.94 = 138,405.46 : x
  2. Step 2: Convert to fraction form
    240,382.54/331,737.94 = 138,405.46/x
  3. Step 3: Cross multiply
    240,382.54x = 331,737.94 × 138,405.46
  4. Step 4: Simplify right side
    240,382.54x = 45,914,342,185.15
  5. Step 5: Solve for x
    x = 45,914,342,185.15/240,382.54
  6. Step 6: Final answer
    x = 191,005.31

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1.5x scale

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.