Home / 209,876.20-314,814.30-135,226.60

Finding the Fourth Proportional to 209,876.20, 314,814.30 and 135,226.60

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Solution

The fourth proportional to 209,876.20, 314,814.30 and 135,226.60 is: 202,839.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,876.20 : 314,814.30 = 135,226.60 : x
  2. Step 2: Convert to fraction form
    209,876.20/314,814.30 = 135,226.60/x
  3. Step 3: Cross multiply
    209,876.20x = 314,814.30 × 135,226.60
  4. Step 4: Simplify right side
    209,876.20x = 42,571,267,420.38
  5. Step 5: Solve for x
    x = 42,571,267,420.38/209,876.20
  6. Step 6: Final answer
    x = 202,839.90

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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.