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Finding the Fourth Proportional to 223,588.08, 308,538.72 and 122,986.08

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Solution

The fourth proportional to 223,588.08, 308,538.72 and 122,986.08 is: 169,713.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,588.08 : 308,538.72 = 122,986.08 : x
  2. Step 2: Convert to fraction form
    223,588.08/308,538.72 = 122,986.08/x
  3. Step 3: Cross multiply
    223,588.08x = 308,538.72 × 122,986.08
  4. Step 4: Simplify right side
    223,588.08x = 37,945,967,701.02
  5. Step 5: Solve for x
    x = 37,945,967,701.02/223,588.08
  6. Step 6: Final answer
    x = 169,713.73

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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.