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Finding the Fourth Proportional to 272,586.87, 408,945.92 and 114,860.43

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Solution

The fourth proportional to 272,586.87, 408,945.92 and 114,860.43 is: 172,318.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,586.87 : 408,945.92 = 114,860.43 : x
  2. Step 2: Convert to fraction form
    272,586.87/408,945.92 = 114,860.43/x
  3. Step 3: Cross multiply
    272,586.87x = 408,945.92 × 114,860.43
  4. Step 4: Simplify right side
    272,586.87x = 46,971,703,643.64
  5. Step 5: Solve for x
    x = 46,971,703,643.64/272,586.87
  6. Step 6: Final answer
    x = 172,318.29

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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.