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Finding the Fourth Proportional to 372,019.59, 512,475.93 and 269,744.54

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Solution

The fourth proportional to 372,019.59, 512,475.93 and 269,744.54 is: 371,586.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,019.59 : 512,475.93 = 269,744.54 : x
  2. Step 2: Convert to fraction form
    372,019.59/512,475.93 = 269,744.54/x
  3. Step 3: Cross multiply
    372,019.59x = 512,475.93 × 269,744.54
  4. Step 4: Simplify right side
    372,019.59x = 138,237,581,436.54
  5. Step 5: Solve for x
    x = 138,237,581,436.54/372,019.59
  6. Step 6: Final answer
    x = 371,586.83

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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.