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Finding the Fourth Proportional to 534.74, 801.63 and 192.66

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Solution

The fourth proportional to 534.74, 801.63 and 192.66 is: 288.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.74 : 801.63 = 192.66 : x
  2. Step 2: Convert to fraction form
    534.74/801.63 = 192.66/x
  3. Step 3: Cross multiply
    534.74x = 801.63 × 192.66
  4. Step 4: Simplify right side
    534.74x = 154,442.04
  5. Step 5: Solve for x
    x = 154,442.04/534.74
  6. Step 6: Final answer
    x = 288.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.