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Finding the Fourth Proportional to 566.69, 781.96 and 330.69

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Solution

The fourth proportional to 566.69, 781.96 and 330.69 is: 456.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    566.69 : 781.96 = 330.69 : x
  2. Step 2: Convert to fraction form
    566.69/781.96 = 330.69/x
  3. Step 3: Cross multiply
    566.69x = 781.96 × 330.69
  4. Step 4: Simplify right side
    566.69x = 258,586.35
  5. Step 5: Solve for x
    x = 258,586.35/566.69
  6. Step 6: Final answer
    x = 456.31

Related Problems

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.