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Finding the Fourth Proportional to 871.08, 1,305.84 and 377.52

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Solution

The fourth proportional to 871.08, 1,305.84 and 377.52 is: 565.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    871.08 : 1,305.84 = 377.52 : x
  2. Step 2: Convert to fraction form
    871.08/1,305.84 = 377.52/x
  3. Step 3: Cross multiply
    871.08x = 1,305.84 × 377.52
  4. Step 4: Simplify right side
    871.08x = 492,980.72
  5. Step 5: Solve for x
    x = 492,980.72/871.08
  6. Step 6: Final answer
    x = 565.94

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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.