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Finding the Fourth Proportional to 225.04, 310.58 and 126.82

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Solution

The fourth proportional to 225.04, 310.58 and 126.82 is: 175.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    225.04 : 310.58 = 126.82 : x
  2. Step 2: Convert to fraction form
    225.04/310.58 = 126.82/x
  3. Step 3: Cross multiply
    225.04x = 310.58 × 126.82
  4. Step 4: Simplify right side
    225.04x = 39,387.76
  5. Step 5: Solve for x
    x = 39,387.76/225.04
  6. Step 6: Final answer
    x = 175.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.