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Finding the Fourth Proportional to 223,019.12, 307,766.66 and 121,044.54

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Solution

The fourth proportional to 223,019.12, 307,766.66 and 121,044.54 is: 167,041.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,019.12 : 307,766.66 = 121,044.54 : x
  2. Step 2: Convert to fraction form
    223,019.12/307,766.66 = 121,044.54/x
  3. Step 3: Cross multiply
    223,019.12x = 307,766.66 × 121,044.54
  4. Step 4: Simplify right side
    223,019.12x = 37,253,474,089.65
  5. Step 5: Solve for x
    x = 37,253,474,089.65/223,019.12
  6. Step 6: Final answer
    x = 167,041.62

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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.