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Finding the Fourth Proportional to 701.73, 968.40 and 386.98

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Solution

The fourth proportional to 701.73, 968.40 and 386.98 is: 534.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    701.73 : 968.40 = 386.98 : x
  2. Step 2: Convert to fraction form
    701.73/968.40 = 386.98/x
  3. Step 3: Cross multiply
    701.73x = 968.40 × 386.98
  4. Step 4: Simplify right side
    701.73x = 374,749.01
  5. Step 5: Solve for x
    x = 374,749.01/701.73
  6. Step 6: Final answer
    x = 534.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.