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Finding the Fourth Proportional to 223,007.45, 307,747.67 and 121,033.08

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Solution

The fourth proportional to 223,007.45, 307,747.67 and 121,033.08 is: 167,024.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,007.45 : 307,747.67 = 121,033.08 : x
  2. Step 2: Convert to fraction form
    223,007.45/307,747.67 = 121,033.08/x
  3. Step 3: Cross multiply
    223,007.45x = 307,747.67 × 121,033.08
  4. Step 4: Simplify right side
    223,007.45x = 37,247,647,757.76
  5. Step 5: Solve for x
    x = 37,247,647,757.76/223,007.45
  6. Step 6: Final answer
    x = 167,024.23

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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.