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Finding the Fourth Proportional to 750.03, 1,125.11 and 262.99

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Solution

The fourth proportional to 750.03, 1,125.11 and 262.99 is: 394.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    750.03 : 1,125.11 = 262.99 : x
  2. Step 2: Convert to fraction form
    750.03/1,125.11 = 262.99/x
  3. Step 3: Cross multiply
    750.03x = 1,125.11 × 262.99
  4. Step 4: Simplify right side
    750.03x = 295,892.68
  5. Step 5: Solve for x
    x = 295,892.68/750.03
  6. Step 6: Final answer
    x = 394.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.