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Finding the Fourth Proportional to 273,382.40, 409,612.80 and 132,838.40

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Solution

The fourth proportional to 273,382.40, 409,612.80 and 132,838.40 is: 199,033.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,382.40 : 409,612.80 = 132,838.40 : x
  2. Step 2: Convert to fraction form
    273,382.40/409,612.80 = 132,838.40/x
  3. Step 3: Cross multiply
    273,382.40x = 409,612.80 × 132,838.40
  4. Step 4: Simplify right side
    273,382.40x = 54,412,308,971.52
  5. Step 5: Solve for x
    x = 54,412,308,971.52/273,382.40
  6. Step 6: Final answer
    x = 199,033.69

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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.