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Finding the Fourth Proportional to 545.12, 752.11 and 335.33

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Solution

The fourth proportional to 545.12, 752.11 and 335.33 is: 462.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.12 : 752.11 = 335.33 : x
  2. Step 2: Convert to fraction form
    545.12/752.11 = 335.33/x
  3. Step 3: Cross multiply
    545.12x = 752.11 × 335.33
  4. Step 4: Simplify right side
    545.12x = 252,206.09
  5. Step 5: Solve for x
    x = 252,206.09/545.12
  6. Step 6: Final answer
    x = 462.66

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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.