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Finding the Fourth Proportional to 287,770.73, 397,019.48 and 166,845.42

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Solution

The fourth proportional to 287,770.73, 397,019.48 and 166,845.42 is: 230,186.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,770.73 : 397,019.48 = 166,845.42 : x
  2. Step 2: Convert to fraction form
    287,770.73/397,019.48 = 166,845.42/x
  3. Step 3: Cross multiply
    287,770.73x = 397,019.48 × 166,845.42
  4. Step 4: Simplify right side
    287,770.73x = 66,240,881,054.55
  5. Step 5: Solve for x
    x = 66,240,881,054.55/287,770.73
  6. Step 6: Final answer
    x = 230,186.31

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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.