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Finding the Fourth Proportional to 294.84, 442.23 and 186.30

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Solution

The fourth proportional to 294.84, 442.23 and 186.30 is: 279.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.84 : 442.23 = 186.30 : x
  2. Step 2: Convert to fraction form
    294.84/442.23 = 186.30/x
  3. Step 3: Cross multiply
    294.84x = 442.23 × 186.30
  4. Step 4: Simplify right side
    294.84x = 82,387.45
  5. Step 5: Solve for x
    x = 82,387.45/294.84
  6. Step 6: Final answer
    x = 279.43

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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.