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Finding the Fourth Proportional to 868.02, 1,196.60 and 536.28

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Solution

The fourth proportional to 868.02, 1,196.60 and 536.28 is: 739.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    868.02 : 1,196.60 = 536.28 : x
  2. Step 2: Convert to fraction form
    868.02/1,196.60 = 536.28/x
  3. Step 3: Cross multiply
    868.02x = 1,196.60 × 536.28
  4. Step 4: Simplify right side
    868.02x = 641,712.65
  5. Step 5: Solve for x
    x = 641,712.65/868.02
  6. Step 6: Final answer
    x = 739.28

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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.