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Finding the Fourth Proportional to 223,368.82, 308,249.97 and 122,773.30

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Solution

The fourth proportional to 223,368.82, 308,249.97 and 122,773.30 is: 169,427.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,368.82 : 308,249.97 = 122,773.30 : x
  2. Step 2: Convert to fraction form
    223,368.82/308,249.97 = 122,773.30/x
  3. Step 3: Cross multiply
    223,368.82x = 308,249.97 × 122,773.30
  4. Step 4: Simplify right side
    223,368.82x = 37,844,866,041.80
  5. Step 5: Solve for x
    x = 37,844,866,041.80/223,368.82
  6. Step 6: Final answer
    x = 169,427.70

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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.