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Finding the Fourth Proportional to 295.92, 442.80 and 187.92

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Solution

The fourth proportional to 295.92, 442.80 and 187.92 is: 281.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.92 : 442.80 = 187.92 : x
  2. Step 2: Convert to fraction form
    295.92/442.80 = 187.92/x
  3. Step 3: Cross multiply
    295.92x = 442.80 × 187.92
  4. Step 4: Simplify right side
    295.92x = 83,210.98
  5. Step 5: Solve for x
    x = 83,210.98/295.92
  6. Step 6: Final answer
    x = 281.19

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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.