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Finding the Fourth Proportional to 392,299.68, 587,888.06 and 223,471.56

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Solution

The fourth proportional to 392,299.68, 587,888.06 and 223,471.56 is: 334,887.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,299.68 : 587,888.06 = 223,471.56 : x
  2. Step 2: Convert to fraction form
    392,299.68/587,888.06 = 223,471.56/x
  3. Step 3: Cross multiply
    392,299.68x = 587,888.06 × 223,471.56
  4. Step 4: Simplify right side
    392,299.68x = 131,376,261,873.57
  5. Step 5: Solve for x
    x = 131,376,261,873.57/392,299.68
  6. Step 6: Final answer
    x = 334,887.51

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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.