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Finding the Fourth Proportional to 265.07, 365.82 and 153.05

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Solution

The fourth proportional to 265.07, 365.82 and 153.05 is: 211.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.07 : 365.82 = 153.05 : x
  2. Step 2: Convert to fraction form
    265.07/365.82 = 153.05/x
  3. Step 3: Cross multiply
    265.07x = 365.82 × 153.05
  4. Step 4: Simplify right side
    265.07x = 55,986.92
  5. Step 5: Solve for x
    x = 55,986.92/265.07
  6. Step 6: Final answer
    x = 211.22

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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.