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Finding the Fourth Proportional to 600,087.05, 900,220.09 and 220,978.65

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Solution

The fourth proportional to 600,087.05, 900,220.09 and 220,978.65 is: 331,500.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    600,087.05 : 900,220.09 = 220,978.65 : x
  2. Step 2: Convert to fraction form
    600,087.05/900,220.09 = 220,978.65/x
  3. Step 3: Cross multiply
    600,087.05x = 900,220.09 × 220,978.65
  4. Step 4: Simplify right side
    600,087.05x = 198,929,420,191.08
  5. Step 5: Solve for x
    x = 198,929,420,191.08/600,087.05
  6. Step 6: Final answer
    x = 331,500.94

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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.