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Finding the Fourth Proportional to 226,999.40, 340,499.10 and 209,940.80

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Solution

The fourth proportional to 226,999.40, 340,499.10 and 209,940.80 is: 314,911.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,999.40 : 340,499.10 = 209,940.80 : x
  2. Step 2: Convert to fraction form
    226,999.40/340,499.10 = 209,940.80/x
  3. Step 3: Cross multiply
    226,999.40x = 340,499.10 × 209,940.80
  4. Step 4: Simplify right side
    226,999.40x = 71,484,653,453.28
  5. Step 5: Solve for x
    x = 71,484,653,453.28/226,999.40
  6. Step 6: Final answer
    x = 314,911.20

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1.5x scale

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.