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Finding the Fourth Proportional to 223,403.90, 308,299.44 and 121,429.58

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Solution

The fourth proportional to 223,403.90, 308,299.44 and 121,429.58 is: 167,573.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,403.90 : 308,299.44 = 121,429.58 : x
  2. Step 2: Convert to fraction form
    223,403.90/308,299.44 = 121,429.58/x
  3. Step 3: Cross multiply
    223,403.90x = 308,299.44 × 121,429.58
  4. Step 4: Simplify right side
    223,403.90x = 37,436,669,971.94
  5. Step 5: Solve for x
    x = 37,436,669,971.94/223,403.90
  6. Step 6: Final answer
    x = 167,573.94

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.