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Finding the Fourth Proportional to 943.04, 1,301.38 and 550.12

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Solution

The fourth proportional to 943.04, 1,301.38 and 550.12 is: 759.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    943.04 : 1,301.38 = 550.12 : x
  2. Step 2: Convert to fraction form
    943.04/1,301.38 = 550.12/x
  3. Step 3: Cross multiply
    943.04x = 1,301.38 × 550.12
  4. Step 4: Simplify right side
    943.04x = 715,915.17
  5. Step 5: Solve for x
    x = 715,915.17/943.04
  6. Step 6: Final answer
    x = 759.16

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Double scale
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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.