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Finding the Fourth Proportional to 543.35, 814.07 and 371.51

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Solution

The fourth proportional to 543.35, 814.07 and 371.51 is: 556.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    543.35 : 814.07 = 371.51 : x
  2. Step 2: Convert to fraction form
    543.35/814.07 = 371.51/x
  3. Step 3: Cross multiply
    543.35x = 814.07 × 371.51
  4. Step 4: Simplify right side
    543.35x = 302,433.29
  5. Step 5: Solve for x
    x = 302,433.29/543.35
  6. Step 6: Final answer
    x = 556.61

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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.