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Finding the Fourth Proportional to 558.52, 833.04 and 548.80

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Solution

The fourth proportional to 558.52, 833.04 and 548.80 is: 818.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    558.52 : 833.04 = 548.80 : x
  2. Step 2: Convert to fraction form
    558.52/833.04 = 548.80/x
  3. Step 3: Cross multiply
    558.52x = 833.04 × 548.80
  4. Step 4: Simplify right side
    558.52x = 457,172.35
  5. Step 5: Solve for x
    x = 457,172.35/558.52
  6. Step 6: Final answer
    x = 818.54

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.