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Finding the Fourth Proportional to 547.85, 818.52 and 542.99

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Solution

The fourth proportional to 547.85, 818.52 and 542.99 is: 811.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.85 : 818.52 = 542.99 : x
  2. Step 2: Convert to fraction form
    547.85/818.52 = 542.99/x
  3. Step 3: Cross multiply
    547.85x = 818.52 × 542.99
  4. Step 4: Simplify right side
    547.85x = 444,444.08
  5. Step 5: Solve for x
    x = 444,444.08/547.85
  6. Step 6: Final answer
    x = 811.26

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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.