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Finding the Fourth Proportional to 295.14, 442.62 and 140.98

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Solution

The fourth proportional to 295.14, 442.62 and 140.98 is: 211.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.14 : 442.62 = 140.98 : x
  2. Step 2: Convert to fraction form
    295.14/442.62 = 140.98/x
  3. Step 3: Cross multiply
    295.14x = 442.62 × 140.98
  4. Step 4: Simplify right side
    295.14x = 62,400.57
  5. Step 5: Solve for x
    x = 62,400.57/295.14
  6. Step 6: Final answer
    x = 211.43

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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.