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Finding the Fourth Proportional to 314.73, 471.98 and 173.98

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Solution

The fourth proportional to 314.73, 471.98 and 173.98 is: 260.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    314.73 : 471.98 = 173.98 : x
  2. Step 2: Convert to fraction form
    314.73/471.98 = 173.98/x
  3. Step 3: Cross multiply
    314.73x = 471.98 × 173.98
  4. Step 4: Simplify right side
    314.73x = 82,116.11
  5. Step 5: Solve for x
    x = 82,116.11/314.73
  6. Step 6: Final answer
    x = 260.91

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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.