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Finding the Fourth Proportional to 223,670.41, 308,655.97 and 121,696.29

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Solution

The fourth proportional to 223,670.41, 308,655.97 and 121,696.29 is: 167,935.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,670.41 : 308,655.97 = 121,696.29 : x
  2. Step 2: Convert to fraction form
    223,670.41/308,655.97 = 121,696.29/x
  3. Step 3: Cross multiply
    223,670.41x = 308,655.97 × 121,696.29
  4. Step 4: Simplify right side
    223,670.41x = 37,562,286,131.11
  5. Step 5: Solve for x
    x = 37,562,286,131.11/223,670.41
  6. Step 6: Final answer
    x = 167,935.87

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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.