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Finding the Fourth Proportional to 265.13, 365.90 and 148.71

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Solution

The fourth proportional to 265.13, 365.90 and 148.71 is: 205.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.13 : 365.90 = 148.71 : x
  2. Step 2: Convert to fraction form
    265.13/365.90 = 148.71/x
  3. Step 3: Cross multiply
    265.13x = 365.90 × 148.71
  4. Step 4: Simplify right side
    265.13x = 54,412.99
  5. Step 5: Solve for x
    x = 54,412.99/265.13
  6. Step 6: Final answer
    x = 205.23

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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.