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Finding the Fourth Proportional to 452.46, 624.32 and 275.45

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Solution

The fourth proportional to 452.46, 624.32 and 275.45 is: 380.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.46 : 624.32 = 275.45 : x
  2. Step 2: Convert to fraction form
    452.46/624.32 = 275.45/x
  3. Step 3: Cross multiply
    452.46x = 624.32 × 275.45
  4. Step 4: Simplify right side
    452.46x = 171,968.94
  5. Step 5: Solve for x
    x = 171,968.94/452.46
  6. Step 6: Final answer
    x = 380.08

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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.