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Finding the Fourth Proportional to 223,715.73, 308,727.74 and 123,113.73

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Solution

The fourth proportional to 223,715.73, 308,727.74 and 123,113.73 is: 169,896.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,715.73 : 308,727.74 = 123,113.73 : x
  2. Step 2: Convert to fraction form
    223,715.73/308,727.74 = 123,113.73/x
  3. Step 3: Cross multiply
    223,715.73x = 308,727.74 × 123,113.73
  4. Step 4: Simplify right side
    223,715.73x = 38,008,623,625.87
  5. Step 5: Solve for x
    x = 38,008,623,625.87/223,715.73
  6. Step 6: Final answer
    x = 169,896.97

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1.5x scale

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.