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Finding the Fourth Proportional to 223,848.92, 308,903.81 and 121,872.62

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Solution

The fourth proportional to 223,848.92, 308,903.81 and 121,872.62 is: 168,180.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,848.92 : 308,903.81 = 121,872.62 : x
  2. Step 2: Convert to fraction form
    223,848.92/308,903.81 = 121,872.62/x
  3. Step 3: Cross multiply
    223,848.92x = 308,903.81 × 121,872.62
  4. Step 4: Simplify right side
    223,848.92x = 37,646,914,498.80
  5. Step 5: Solve for x
    x = 37,646,914,498.80/223,848.92
  6. Step 6: Final answer
    x = 168,180.02

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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.