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Finding the Fourth Proportional to 540,040.91, 810,058.43 and 220,191.53

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Solution

The fourth proportional to 540,040.91, 810,058.43 and 220,191.53 is: 330,286.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,040.91 : 810,058.43 = 220,191.53 : x
  2. Step 2: Convert to fraction form
    540,040.91/810,058.43 = 220,191.53/x
  3. Step 3: Cross multiply
    540,040.91x = 810,058.43 × 220,191.53
  4. Step 4: Simplify right side
    540,040.91x = 178,367,999,939.85
  5. Step 5: Solve for x
    x = 178,367,999,939.85/540,040.91
  6. Step 6: Final answer
    x = 330,286.09

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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.