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Finding the Fourth Proportional to 265.16, 366.36 and 187.76

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Solution

The fourth proportional to 265.16, 366.36 and 187.76 is: 259.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.16 : 366.36 = 187.76 : x
  2. Step 2: Convert to fraction form
    265.16/366.36 = 187.76/x
  3. Step 3: Cross multiply
    265.16x = 366.36 × 187.76
  4. Step 4: Simplify right side
    265.16x = 68,787.75
  5. Step 5: Solve for x
    x = 68,787.75/265.16
  6. Step 6: Final answer
    x = 259.42

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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.