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Finding the Fourth Proportional to 452.77, 624.84 and 286.92

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Solution

The fourth proportional to 452.77, 624.84 and 286.92 is: 395.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.77 : 624.84 = 286.92 : x
  2. Step 2: Convert to fraction form
    452.77/624.84 = 286.92/x
  3. Step 3: Cross multiply
    452.77x = 624.84 × 286.92
  4. Step 4: Simplify right side
    452.77x = 179,277.53
  5. Step 5: Solve for x
    x = 179,277.53/452.77
  6. Step 6: Final answer
    x = 395.96

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Find fourth proportional to 226.38, 312.42 and 143.46
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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.