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Finding the Fourth Proportional to 540,516.89, 810,142.05 and 220,469.02

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Solution

The fourth proportional to 540,516.89, 810,142.05 and 220,469.02 is: 330,445.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,516.89 : 810,142.05 = 220,469.02 : x
  2. Step 2: Convert to fraction form
    540,516.89/810,142.05 = 220,469.02/x
  3. Step 3: Cross multiply
    540,516.89x = 810,142.05 × 220,469.02
  4. Step 4: Simplify right side
    540,516.89x = 178,611,222,625.70
  5. Step 5: Solve for x
    x = 178,611,222,625.70/540,516.89
  6. Step 6: Final answer
    x = 330,445.22

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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.