Home / 272,294.20-408,830.10-213,196.60

Finding the Fourth Proportional to 272,294.20, 408,830.10 and 213,196.60

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Solution

The fourth proportional to 272,294.20, 408,830.10 and 213,196.60 is: 320,099.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,294.20 : 408,830.10 = 213,196.60 : x
  2. Step 2: Convert to fraction form
    272,294.20/408,830.10 = 213,196.60/x
  3. Step 3: Cross multiply
    272,294.20x = 408,830.10 × 213,196.60
  4. Step 4: Simplify right side
    272,294.20x = 87,161,187,297.66
  5. Step 5: Solve for x
    x = 87,161,187,297.66/272,294.20
  6. Step 6: Final answer
    x = 320,099.32

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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.