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Finding the Fourth Proportional to 406.02, 608.24 and 268.66

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Solution

The fourth proportional to 406.02, 608.24 and 268.66 is: 402.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    406.02 : 608.24 = 268.66 : x
  2. Step 2: Convert to fraction form
    406.02/608.24 = 268.66/x
  3. Step 3: Cross multiply
    406.02x = 608.24 × 268.66
  4. Step 4: Simplify right side
    406.02x = 163,411.19
  5. Step 5: Solve for x
    x = 163,411.19/406.02
  6. Step 6: Final answer
    x = 402.47

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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.