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Finding the Fourth Proportional to 400.06, 600.09 and 168.76

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Solution

The fourth proportional to 400.06, 600.09 and 168.76 is: 253.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    400.06 : 600.09 = 168.76 : x
  2. Step 2: Convert to fraction form
    400.06/600.09 = 168.76/x
  3. Step 3: Cross multiply
    400.06x = 600.09 × 168.76
  4. Step 4: Simplify right side
    400.06x = 101,271.19
  5. Step 5: Solve for x
    x = 101,271.19/400.06
  6. Step 6: Final answer
    x = 253.14

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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.