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Finding the Fourth Proportional to 263.33, 363.23 and 152.78

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Solution

The fourth proportional to 263.33, 363.23 and 152.78 is: 210.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.33 : 363.23 = 152.78 : x
  2. Step 2: Convert to fraction form
    263.33/363.23 = 152.78/x
  3. Step 3: Cross multiply
    263.33x = 363.23 × 152.78
  4. Step 4: Simplify right side
    263.33x = 55,495.57
  5. Step 5: Solve for x
    x = 55,495.57/263.33
  6. Step 6: Final answer
    x = 210.75

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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.