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Finding the Fourth Proportional to 452.75, 624.60 and 347.66

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Solution

The fourth proportional to 452.75, 624.60 and 347.66 is: 479.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.75 : 624.60 = 347.66 : x
  2. Step 2: Convert to fraction form
    452.75/624.60 = 347.66/x
  3. Step 3: Cross multiply
    452.75x = 624.60 × 347.66
  4. Step 4: Simplify right side
    452.75x = 217,145.31
  5. Step 5: Solve for x
    x = 217,145.31/452.75
  6. Step 6: Final answer
    x = 479.61

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Find fourth proportional to 226.38, 312.30 and 173.83
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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.