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Finding the Fourth Proportional to 637.23, 955.95 and 226.31

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Solution

The fourth proportional to 637.23, 955.95 and 226.31 is: 339.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.23 : 955.95 = 226.31 : x
  2. Step 2: Convert to fraction form
    637.23/955.95 = 226.31/x
  3. Step 3: Cross multiply
    637.23x = 955.95 × 226.31
  4. Step 4: Simplify right side
    637.23x = 216,335.13
  5. Step 5: Solve for x
    x = 216,335.13/637.23
  6. Step 6: Final answer
    x = 339.49

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Double scale
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Similar ratio
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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.