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Finding the Fourth Proportional to 266.04, 397.37 and 225.05

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Solution

The fourth proportional to 266.04, 397.37 and 225.05 is: 336.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    266.04 : 397.37 = 225.05 : x
  2. Step 2: Convert to fraction form
    266.04/397.37 = 225.05/x
  3. Step 3: Cross multiply
    266.04x = 397.37 × 225.05
  4. Step 4: Simplify right side
    266.04x = 89,425.01
  5. Step 5: Solve for x
    x = 89,425.01/266.04
  6. Step 6: Final answer
    x = 336.13

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.