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Finding the Fourth Proportional to 941.89, 1,412.71 and 248.61

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Solution

The fourth proportional to 941.89, 1,412.71 and 248.61 is: 372.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    941.89 : 1,412.71 = 248.61 : x
  2. Step 2: Convert to fraction form
    941.89/1,412.71 = 248.61/x
  3. Step 3: Cross multiply
    941.89x = 1,412.71 × 248.61
  4. Step 4: Simplify right side
    941.89x = 351,219.91
  5. Step 5: Solve for x
    x = 351,219.91/941.89
  6. Step 6: Final answer
    x = 372.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.