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Finding the Fourth Proportional to 541.62, 811.35 and 325.62

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Solution

The fourth proportional to 541.62, 811.35 and 325.62 is: 487.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    541.62 : 811.35 = 325.62 : x
  2. Step 2: Convert to fraction form
    541.62/811.35 = 325.62/x
  3. Step 3: Cross multiply
    541.62x = 811.35 × 325.62
  4. Step 4: Simplify right side
    541.62x = 264,191.79
  5. Step 5: Solve for x
    x = 264,191.79/541.62
  6. Step 6: Final answer
    x = 487.78

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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.