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Finding the Fourth Proportional to 400.76, 600.86 and 246.72

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Solution

The fourth proportional to 400.76, 600.86 and 246.72 is: 369.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    400.76 : 600.86 = 246.72 : x
  2. Step 2: Convert to fraction form
    400.76/600.86 = 246.72/x
  3. Step 3: Cross multiply
    400.76x = 600.86 × 246.72
  4. Step 4: Simplify right side
    400.76x = 148,244.18
  5. Step 5: Solve for x
    x = 148,244.18/400.76
  6. Step 6: Final answer
    x = 369.91

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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.