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Finding the Fourth Proportional to 222,103, 306,509.43 and 121,501

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Solution

The fourth proportional to 222,103, 306,509.43 and 121,501 is: 167,675.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,103 : 306,509.43 = 121,501 : x
  2. Step 2: Convert to fraction form
    222,103/306,509.43 = 121,501/x
  3. Step 3: Cross multiply
    222,103x = 306,509.43 × 121,501
  4. Step 4: Simplify right side
    222,103x = 37,241,202,254.43
  5. Step 5: Solve for x
    x = 37,241,202,254.43/222,103
  6. Step 6: Final answer
    x = 167,675.37

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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.