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Finding the Fourth Proportional to 659.01, 988.58 and 226.20

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Solution

The fourth proportional to 659.01, 988.58 and 226.20 is: 339.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    659.01 : 988.58 = 226.20 : x
  2. Step 2: Convert to fraction form
    659.01/988.58 = 226.20/x
  3. Step 3: Cross multiply
    659.01x = 988.58 × 226.20
  4. Step 4: Simplify right side
    659.01x = 223,610.72
  5. Step 5: Solve for x
    x = 223,610.72/659.01
  6. Step 6: Final answer
    x = 339.32

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Double scale
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Similar ratio
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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.