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Finding the Fourth Proportional to 571.01, 856.59 and 262.86

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Solution

The fourth proportional to 571.01, 856.59 and 262.86 is: 394.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.01 : 856.59 = 262.86 : x
  2. Step 2: Convert to fraction form
    571.01/856.59 = 262.86/x
  3. Step 3: Cross multiply
    571.01x = 856.59 × 262.86
  4. Step 4: Simplify right side
    571.01x = 225,163.25
  5. Step 5: Solve for x
    x = 225,163.25/571.01
  6. Step 6: Final answer
    x = 394.32

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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.