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Finding the Fourth Proportional to 548.57, 756.18 and 437.87

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Solution

The fourth proportional to 548.57, 756.18 and 437.87 is: 603.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.57 : 756.18 = 437.87 : x
  2. Step 2: Convert to fraction form
    548.57/756.18 = 437.87/x
  3. Step 3: Cross multiply
    548.57x = 756.18 × 437.87
  4. Step 4: Simplify right side
    548.57x = 331,104.76
  5. Step 5: Solve for x
    x = 331,104.76/548.57
  6. Step 6: Final answer
    x = 603.58

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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.