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Finding the Fourth Proportional to 538.32, 807.27 and 191.59

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Solution

The fourth proportional to 538.32, 807.27 and 191.59 is: 287.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    538.32 : 807.27 = 191.59 : x
  2. Step 2: Convert to fraction form
    538.32/807.27 = 191.59/x
  3. Step 3: Cross multiply
    538.32x = 807.27 × 191.59
  4. Step 4: Simplify right side
    538.32x = 154,665.61
  5. Step 5: Solve for x
    x = 154,665.61/538.32
  6. Step 6: Final answer
    x = 287.31

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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.