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Finding the Fourth Proportional to 400.27, 600.30 and 156.73

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Solution

The fourth proportional to 400.27, 600.30 and 156.73 is: 235.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    400.27 : 600.30 = 156.73 : x
  2. Step 2: Convert to fraction form
    400.27/600.30 = 156.73/x
  3. Step 3: Cross multiply
    400.27x = 600.30 × 156.73
  4. Step 4: Simplify right side
    400.27x = 94,085.02
  5. Step 5: Solve for x
    x = 94,085.02/400.27
  6. Step 6: Final answer
    x = 235.05

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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.