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Finding the Fourth Proportional to 701.15, 967.61 and 386.44

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Solution

The fourth proportional to 701.15, 967.61 and 386.44 is: 533.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    701.15 : 967.61 = 386.44 : x
  2. Step 2: Convert to fraction form
    701.15/967.61 = 386.44/x
  3. Step 3: Cross multiply
    701.15x = 967.61 × 386.44
  4. Step 4: Simplify right side
    701.15x = 373,923.21
  5. Step 5: Solve for x
    x = 373,923.21/701.15
  6. Step 6: Final answer
    x = 533.30

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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.