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Finding the Fourth Proportional to 540.87, 811.29 and 323.01

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Solution

The fourth proportional to 540.87, 811.29 and 323.01 is: 484.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    540.87 : 811.29 = 323.01 : x
  2. Step 2: Convert to fraction form
    540.87/811.29 = 323.01/x
  3. Step 3: Cross multiply
    540.87x = 811.29 × 323.01
  4. Step 4: Simplify right side
    540.87x = 262,054.78
  5. Step 5: Solve for x
    x = 262,054.78/540.87
  6. Step 6: Final answer
    x = 484.51

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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.