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Finding the Fourth Proportional to 541.62, 808.78 and 535.90

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Solution

The fourth proportional to 541.62, 808.78 and 535.90 is: 800.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    541.62 : 808.78 = 535.90 : x
  2. Step 2: Convert to fraction form
    541.62/808.78 = 535.90/x
  3. Step 3: Cross multiply
    541.62x = 808.78 × 535.90
  4. Step 4: Simplify right side
    541.62x = 433,425.20
  5. Step 5: Solve for x
    x = 433,425.20/541.62
  6. Step 6: Final answer
    x = 800.23

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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.