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Finding the Fourth Proportional to 739.01, 1,108.82 and 252.09

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Solution

The fourth proportional to 739.01, 1,108.82 and 252.09 is: 378.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    739.01 : 1,108.82 = 252.09 : x
  2. Step 2: Convert to fraction form
    739.01/1,108.82 = 252.09/x
  3. Step 3: Cross multiply
    739.01x = 1,108.82 × 252.09
  4. Step 4: Simplify right side
    739.01x = 279,521.17
  5. Step 5: Solve for x
    x = 279,521.17/739.01
  6. Step 6: Final answer
    x = 378.24

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Double scale
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1.5x scale

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.