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Finding the Fourth Proportional to 607.88, 911.82 and 223.13

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Solution

The fourth proportional to 607.88, 911.82 and 223.13 is: 334.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.88 : 911.82 = 223.13 : x
  2. Step 2: Convert to fraction form
    607.88/911.82 = 223.13/x
  3. Step 3: Cross multiply
    607.88x = 911.82 × 223.13
  4. Step 4: Simplify right side
    607.88x = 203,454.40
  5. Step 5: Solve for x
    x = 203,454.40/607.88
  6. Step 6: Final answer
    x = 334.70

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