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Finding the Fourth Proportional to 452.61, 625.50 and 342.05

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Solution

The fourth proportional to 452.61, 625.50 and 342.05 is: 472.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.61 : 625.50 = 342.05 : x
  2. Step 2: Convert to fraction form
    452.61/625.50 = 342.05/x
  3. Step 3: Cross multiply
    452.61x = 625.50 × 342.05
  4. Step 4: Simplify right side
    452.61x = 213,949.15
  5. Step 5: Solve for x
    x = 213,949.15/452.61
  6. Step 6: Final answer
    x = 472.70

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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.