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Finding the Fourth Proportional to 581.31, 871.88 and 170.36

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Solution

The fourth proportional to 581.31, 871.88 and 170.36 is: 255.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    581.31 : 871.88 = 170.36 : x
  2. Step 2: Convert to fraction form
    581.31/871.88 = 170.36/x
  3. Step 3: Cross multiply
    581.31x = 871.88 × 170.36
  4. Step 4: Simplify right side
    581.31x = 148,533.48
  5. Step 5: Solve for x
    x = 148,533.48/581.31
  6. Step 6: Final answer
    x = 255.52

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.