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Finding the Fourth Proportional to 226,774.40, 340,197.60 and 77,028.80

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Solution

The fourth proportional to 226,774.40, 340,197.60 and 77,028.80 is: 115,555.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,774.40 : 340,197.60 = 77,028.80 : x
  2. Step 2: Convert to fraction form
    226,774.40/340,197.60 = 77,028.80/x
  3. Step 3: Cross multiply
    226,774.40x = 340,197.60 × 77,028.80
  4. Step 4: Simplify right side
    226,774.40x = 26,205,012,890.88
  5. Step 5: Solve for x
    x = 26,205,012,890.88/226,774.40
  6. Step 6: Final answer
    x = 115,555.43

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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.