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Finding the Fourth Proportional to 867.48, 1,197.48 and 536.28

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Solution

The fourth proportional to 867.48, 1,197.48 and 536.28 is: 740.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    867.48 : 1,197.48 = 536.28 : x
  2. Step 2: Convert to fraction form
    867.48/1,197.48 = 536.28/x
  3. Step 3: Cross multiply
    867.48x = 1,197.48 × 536.28
  4. Step 4: Simplify right side
    867.48x = 642,184.57
  5. Step 5: Solve for x
    x = 642,184.57/867.48
  6. Step 6: Final answer
    x = 740.29

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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.