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Finding the Fourth Proportional to 304,999.56, 420,928.80 and 169,062.96

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Solution

The fourth proportional to 304,999.56, 420,928.80 and 169,062.96 is: 233,323.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,999.56 : 420,928.80 = 169,062.96 : x
  2. Step 2: Convert to fraction form
    304,999.56/420,928.80 = 169,062.96/x
  3. Step 3: Cross multiply
    304,999.56x = 420,928.80 × 169,062.96
  4. Step 4: Simplify right side
    304,999.56x = 71,163,468,877.25
  5. Step 5: Solve for x
    x = 71,163,468,877.25/304,999.56
  6. Step 6: Final answer
    x = 233,323.19

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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.