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Finding the Fourth Proportional to 943.51, 1,301.75 and 550.25

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Solution

The fourth proportional to 943.51, 1,301.75 and 550.25 is: 759.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    943.51 : 1,301.75 = 550.25 : x
  2. Step 2: Convert to fraction form
    943.51/1,301.75 = 550.25/x
  3. Step 3: Cross multiply
    943.51x = 1,301.75 × 550.25
  4. Step 4: Simplify right side
    943.51x = 716,288.44
  5. Step 5: Solve for x
    x = 716,288.44/943.51
  6. Step 6: Final answer
    x = 759.18

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Double scale
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1.5x scale

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.