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Finding the Fourth Proportional to 223,794.05, 308,842.75 and 121,826.30

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Solution

The fourth proportional to 223,794.05, 308,842.75 and 121,826.30 is: 168,124.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,794.05 : 308,842.75 = 121,826.30 : x
  2. Step 2: Convert to fraction form
    223,794.05/308,842.75 = 121,826.30/x
  3. Step 3: Cross multiply
    223,794.05x = 308,842.75 × 121,826.30
  4. Step 4: Simplify right side
    223,794.05x = 37,625,168,905.19
  5. Step 5: Solve for x
    x = 37,625,168,905.19/223,794.05
  6. Step 6: Final answer
    x = 168,124.08

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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.