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Finding the Fourth Proportional to 265.11, 365.88 and 154.59

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Solution

The fourth proportional to 265.11, 365.88 and 154.59 is: 213.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.11 : 365.88 = 154.59 : x
  2. Step 2: Convert to fraction form
    265.11/365.88 = 154.59/x
  3. Step 3: Cross multiply
    265.11x = 365.88 × 154.59
  4. Step 4: Simplify right side
    265.11x = 56,561.39
  5. Step 5: Solve for x
    x = 56,561.39/265.11
  6. Step 6: Final answer
    x = 213.35

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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.