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Finding the Fourth Proportional to 579.01, 868.51 and 146.16

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Solution

The fourth proportional to 579.01, 868.51 and 146.16 is: 219.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.01 : 868.51 = 146.16 : x
  2. Step 2: Convert to fraction form
    579.01/868.51 = 146.16/x
  3. Step 3: Cross multiply
    579.01x = 868.51 × 146.16
  4. Step 4: Simplify right side
    579.01x = 126,945.23
  5. Step 5: Solve for x
    x = 126,945.23/579.01
  6. Step 6: Final answer
    x = 219.25

Related Problems

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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.