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Finding the Fourth Proportional to 697.98, 1,046.96 and 235.66

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Solution

The fourth proportional to 697.98, 1,046.96 and 235.66 is: 353.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    697.98 : 1,046.96 = 235.66 : x
  2. Step 2: Convert to fraction form
    697.98/1,046.96 = 235.66/x
  3. Step 3: Cross multiply
    697.98x = 1,046.96 × 235.66
  4. Step 4: Simplify right side
    697.98x = 246,726.59
  5. Step 5: Solve for x
    x = 246,726.59/697.98
  6. Step 6: Final answer
    x = 353.49

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Double scale
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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.