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Finding the Fourth Proportional to 543,229.80, 815,136.30 and 227,718.60

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Solution

The fourth proportional to 543,229.80, 815,136.30 and 227,718.60 is: 341,700.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,229.80 : 815,136.30 = 227,718.60 : x
  2. Step 2: Convert to fraction form
    543,229.80/815,136.30 = 227,718.60/x
  3. Step 3: Cross multiply
    543,229.80x = 815,136.30 × 227,718.60
  4. Step 4: Simplify right side
    543,229.80x = 185,621,697,045.18
  5. Step 5: Solve for x
    x = 185,621,697,045.18/543,229.80
  6. Step 6: Final answer
    x = 341,700.14

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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.