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Finding the Fourth Proportional to 223,340.64, 308,231.76 and 127,860.96

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Solution

The fourth proportional to 223,340.64, 308,231.76 and 127,860.96 is: 176,460.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,340.64 : 308,231.76 = 127,860.96 : x
  2. Step 2: Convert to fraction form
    223,340.64/308,231.76 = 127,860.96/x
  3. Step 3: Cross multiply
    223,340.64x = 308,231.76 × 127,860.96
  4. Step 4: Simplify right side
    223,340.64x = 39,410,808,736.09
  5. Step 5: Solve for x
    x = 39,410,808,736.09/223,340.64
  6. Step 6: Final answer
    x = 176,460.53

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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.