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Finding the Fourth Proportional to 248.18, 370.94 and 193.50

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Solution

The fourth proportional to 248.18, 370.94 and 193.50 is: 289.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.18 : 370.94 = 193.50 : x
  2. Step 2: Convert to fraction form
    248.18/370.94 = 193.50/x
  3. Step 3: Cross multiply
    248.18x = 370.94 × 193.50
  4. Step 4: Simplify right side
    248.18x = 71,775.92
  5. Step 5: Solve for x
    x = 71,775.92/248.18
  6. Step 6: Final answer
    x = 289.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.