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Finding the Fourth Proportional to 259.38, 358.29 and 247.23

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Solution

The fourth proportional to 259.38, 358.29 and 247.23 is: 341.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    259.38 : 358.29 = 247.23 : x
  2. Step 2: Convert to fraction form
    259.38/358.29 = 247.23/x
  3. Step 3: Cross multiply
    259.38x = 358.29 × 247.23
  4. Step 4: Simplify right side
    259.38x = 88,580.04
  5. Step 5: Solve for x
    x = 88,580.04/259.38
  6. Step 6: Final answer
    x = 341.51

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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.