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Finding the Fourth Proportional to 381,852.80, 572,606.40 and 171,382.40

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Solution

The fourth proportional to 381,852.80, 572,606.40 and 171,382.40 is: 256,996.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,852.80 : 572,606.40 = 171,382.40 : x
  2. Step 2: Convert to fraction form
    381,852.80/572,606.40 = 171,382.40/x
  3. Step 3: Cross multiply
    381,852.80x = 572,606.40 × 171,382.40
  4. Step 4: Simplify right side
    381,852.80x = 98,134,659,087.36
  5. Step 5: Solve for x
    x = 98,134,659,087.36/381,852.80
  6. Step 6: Final answer
    x = 256,996.04

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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.