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Finding the Fourth Proportional to 548,968.95, 822,882.53 and 212,240.88

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Solution

The fourth proportional to 548,968.95, 822,882.53 and 212,240.88 is: 318,140.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,968.95 : 822,882.53 = 212,240.88 : x
  2. Step 2: Convert to fraction form
    548,968.95/822,882.53 = 212,240.88/x
  3. Step 3: Cross multiply
    548,968.95x = 822,882.53 × 212,240.88
  4. Step 4: Simplify right side
    548,968.95x = 174,649,311,242.62
  5. Step 5: Solve for x
    x = 174,649,311,242.62/548,968.95
  6. Step 6: Final answer
    x = 318,140.60

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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.