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Finding the Fourth Proportional to 304,487.93, 420,194.25 and 168,531.32

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Solution

The fourth proportional to 304,487.93, 420,194.25 and 168,531.32 is: 232,573.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,487.93 : 420,194.25 = 168,531.32 : x
  2. Step 2: Convert to fraction form
    304,487.93/420,194.25 = 168,531.32/x
  3. Step 3: Cross multiply
    304,487.93x = 420,194.25 × 168,531.32
  4. Step 4: Simplify right side
    304,487.93x = 70,815,890,766.25
  5. Step 5: Solve for x
    x = 70,815,890,766.25/304,487.93
  6. Step 6: Final answer
    x = 232,573.72

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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.