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Finding the Fourth Proportional to 943.43, 1,302.06 and 550.67

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Solution

The fourth proportional to 943.43, 1,302.06 and 550.67 is: 760.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    943.43 : 1,302.06 = 550.67 : x
  2. Step 2: Convert to fraction form
    943.43/1,302.06 = 550.67/x
  3. Step 3: Cross multiply
    943.43x = 1,302.06 × 550.67
  4. Step 4: Simplify right side
    943.43x = 716,998.87
  5. Step 5: Solve for x
    x = 716,998.87/943.43
  6. Step 6: Final answer
    x = 760.00

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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.