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Finding the Fourth Proportional to 540.87, 810.79 and 175.43

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Solution

The fourth proportional to 540.87, 810.79 and 175.43 is: 262.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    540.87 : 810.79 = 175.43 : x
  2. Step 2: Convert to fraction form
    540.87/810.79 = 175.43/x
  3. Step 3: Cross multiply
    540.87x = 810.79 × 175.43
  4. Step 4: Simplify right side
    540.87x = 142,236.89
  5. Step 5: Solve for x
    x = 142,236.89/540.87
  6. Step 6: Final answer
    x = 262.98

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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.