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Finding the Fourth Proportional to 1,207.27, 1,810.73 and 341.65

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Solution

The fourth proportional to 1,207.27, 1,810.73 and 341.65 is: 512.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207.27 : 1,810.73 = 341.65 : x
  2. Step 2: Convert to fraction form
    1,207.27/1,810.73 = 341.65/x
  3. Step 3: Cross multiply
    1,207.27x = 1,810.73 × 341.65
  4. Step 4: Simplify right side
    1,207.27x = 618,635.90
  5. Step 5: Solve for x
    x = 618,635.90/1,207.27
  6. Step 6: Final answer
    x = 512.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.