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Finding the Fourth Proportional to 259,489.64, 388,475.82 and 234,586.76

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Solution

The fourth proportional to 259,489.64, 388,475.82 and 234,586.76 is: 351,194.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,489.64 : 388,475.82 = 234,586.76 : x
  2. Step 2: Convert to fraction form
    259,489.64/388,475.82 = 234,586.76/x
  3. Step 3: Cross multiply
    259,489.64x = 388,475.82 × 234,586.76
  4. Step 4: Simplify right side
    259,489.64x = 91,131,283,952.14
  5. Step 5: Solve for x
    x = 91,131,283,952.14/259,489.64
  6. Step 6: Final answer
    x = 351,194.31

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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.