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Finding the Fourth Proportional to 543.33, 749.61 and 344.37

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Solution

The fourth proportional to 543.33, 749.61 and 344.37 is: 475.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    543.33 : 749.61 = 344.37 : x
  2. Step 2: Convert to fraction form
    543.33/749.61 = 344.37/x
  3. Step 3: Cross multiply
    543.33x = 749.61 × 344.37
  4. Step 4: Simplify right side
    543.33x = 258,143.20
  5. Step 5: Solve for x
    x = 258,143.20/543.33
  6. Step 6: Final answer
    x = 475.11

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1.5x scale

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.