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Finding the Fourth Proportional to 571.03, 856.20 and 262.46

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Solution

The fourth proportional to 571.03, 856.20 and 262.46 is: 393.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.03 : 856.20 = 262.46 : x
  2. Step 2: Convert to fraction form
    571.03/856.20 = 262.46/x
  3. Step 3: Cross multiply
    571.03x = 856.20 × 262.46
  4. Step 4: Simplify right side
    571.03x = 224,716.15
  5. Step 5: Solve for x
    x = 224,716.15/571.03
  6. Step 6: Final answer
    x = 393.53

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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.