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Finding the Fourth Proportional to 547.90, 817.48 and 535.43

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Solution

The fourth proportional to 547.90, 817.48 and 535.43 is: 798.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.90 : 817.48 = 535.43 : x
  2. Step 2: Convert to fraction form
    547.90/817.48 = 535.43/x
  3. Step 3: Cross multiply
    547.90x = 817.48 × 535.43
  4. Step 4: Simplify right side
    547.90x = 437,703.32
  5. Step 5: Solve for x
    x = 437,703.32/547.90
  6. Step 6: Final answer
    x = 798.87

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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.