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Finding the Fourth Proportional to 263.42, 362.66 and 210.77

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Solution

The fourth proportional to 263.42, 362.66 and 210.77 is: 290.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.42 : 362.66 = 210.77 : x
  2. Step 2: Convert to fraction form
    263.42/362.66 = 210.77/x
  3. Step 3: Cross multiply
    263.42x = 362.66 × 210.77
  4. Step 4: Simplify right side
    263.42x = 76,437.85
  5. Step 5: Solve for x
    x = 76,437.85/263.42
  6. Step 6: Final answer
    x = 290.17

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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.