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Finding the Fourth Proportional to 225.57, 337.81 and 186.76

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Solution

The fourth proportional to 225.57, 337.81 and 186.76 is: 279.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    225.57 : 337.81 = 186.76 : x
  2. Step 2: Convert to fraction form
    225.57/337.81 = 186.76/x
  3. Step 3: Cross multiply
    225.57x = 337.81 × 186.76
  4. Step 4: Simplify right side
    225.57x = 63,088.46
  5. Step 5: Solve for x
    x = 63,088.46/225.57
  6. Step 6: Final answer
    x = 279.69

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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.