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Finding the Fourth Proportional to 581.16, 871.54 and 170.19

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Solution

The fourth proportional to 581.16, 871.54 and 170.19 is: 255.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    581.16 : 871.54 = 170.19 : x
  2. Step 2: Convert to fraction form
    581.16/871.54 = 170.19/x
  3. Step 3: Cross multiply
    581.16x = 871.54 × 170.19
  4. Step 4: Simplify right side
    581.16x = 148,327.39
  5. Step 5: Solve for x
    x = 148,327.39/581.16
  6. Step 6: Final answer
    x = 255.23

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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.