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Finding the Fourth Proportional to 247,195.95, 341,080.11 and 145,238.01

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Solution

The fourth proportional to 247,195.95, 341,080.11 and 145,238.01 is: 200,398.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,195.95 : 341,080.11 = 145,238.01 : x
  2. Step 2: Convert to fraction form
    247,195.95/341,080.11 = 145,238.01/x
  3. Step 3: Cross multiply
    247,195.95x = 341,080.11 × 145,238.01
  4. Step 4: Simplify right side
    247,195.95x = 49,537,796,426.98
  5. Step 5: Solve for x
    x = 49,537,796,426.98/247,195.95
  6. Step 6: Final answer
    x = 200,398.90

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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.