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Finding the Fourth Proportional to 541.15, 811.73 and 324.56

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Solution

The fourth proportional to 541.15, 811.73 and 324.56 is: 486.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    541.15 : 811.73 = 324.56 : x
  2. Step 2: Convert to fraction form
    541.15/811.73 = 324.56/x
  3. Step 3: Cross multiply
    541.15x = 811.73 × 324.56
  4. Step 4: Simplify right side
    541.15x = 263,457.93
  5. Step 5: Solve for x
    x = 263,457.93/541.15
  6. Step 6: Final answer
    x = 486.85

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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.