Home / 336,803.20-464,839.50-209,519.80

Finding the Fourth Proportional to 336,803.20, 464,839.50 and 209,519.80

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Solution

The fourth proportional to 336,803.20, 464,839.50 and 209,519.80 is: 289,169.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,803.20 : 464,839.50 = 209,519.80 : x
  2. Step 2: Convert to fraction form
    336,803.20/464,839.50 = 209,519.80/x
  3. Step 3: Cross multiply
    336,803.20x = 464,839.50 × 209,519.80
  4. Step 4: Simplify right side
    336,803.20x = 97,393,079,072.10
  5. Step 5: Solve for x
    x = 97,393,079,072.10/336,803.20
  6. Step 6: Final answer
    x = 289,169.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.