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Finding the Fourth Proportional to 545.68, 752.83 and 335.78

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Solution

The fourth proportional to 545.68, 752.83 and 335.78 is: 463.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.68 : 752.83 = 335.78 : x
  2. Step 2: Convert to fraction form
    545.68/752.83 = 335.78/x
  3. Step 3: Cross multiply
    545.68x = 752.83 × 335.78
  4. Step 4: Simplify right side
    545.68x = 252,780.65
  5. Step 5: Solve for x
    x = 252,780.65/545.68
  6. Step 6: Final answer
    x = 463.24

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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.