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Finding the Fourth Proportional to 548.31, 756.50 and 437.61

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Solution

The fourth proportional to 548.31, 756.50 and 437.61 is: 603.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.31 : 756.50 = 437.61 : x
  2. Step 2: Convert to fraction form
    548.31/756.50 = 437.61/x
  3. Step 3: Cross multiply
    548.31x = 756.50 × 437.61
  4. Step 4: Simplify right side
    548.31x = 331,049.78
  5. Step 5: Solve for x
    x = 331,049.78/548.31
  6. Step 6: Final answer
    x = 603.76

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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.