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Finding the Fourth Proportional to 580.95, 871.47 and 170.06

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Solution

The fourth proportional to 580.95, 871.47 and 170.06 is: 255.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    580.95 : 871.47 = 170.06 : x
  2. Step 2: Convert to fraction form
    580.95/871.47 = 170.06/x
  3. Step 3: Cross multiply
    580.95x = 871.47 × 170.06
  4. Step 4: Simplify right side
    580.95x = 148,197.83
  5. Step 5: Solve for x
    x = 148,197.83/580.95
  6. Step 6: Final answer
    x = 255.10

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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.