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Finding the Fourth Proportional to 581.83, 872.89 and 170.96

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Solution

The fourth proportional to 581.83, 872.89 and 170.96 is: 256.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    581.83 : 872.89 = 170.96 : x
  2. Step 2: Convert to fraction form
    581.83/872.89 = 170.96/x
  3. Step 3: Cross multiply
    581.83x = 872.89 × 170.96
  4. Step 4: Simplify right side
    581.83x = 149,224.48
  5. Step 5: Solve for x
    x = 149,224.48/581.83
  6. Step 6: Final answer
    x = 256.48

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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.