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Finding the Fourth Proportional to 223,766.30, 308,804.04 and 121,798.34

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Solution

The fourth proportional to 223,766.30, 308,804.04 and 121,798.34 is: 168,085.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,766.30 : 308,804.04 = 121,798.34 : x
  2. Step 2: Convert to fraction form
    223,766.30/308,804.04 = 121,798.34/x
  3. Step 3: Cross multiply
    223,766.30x = 308,804.04 × 121,798.34
  4. Step 4: Simplify right side
    223,766.30x = 37,611,820,229.30
  5. Step 5: Solve for x
    x = 37,611,820,229.30/223,766.30
  6. Step 6: Final answer
    x = 168,085.27

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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.