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Finding the Fourth Proportional to 191,213.39, 287,958.38 and 166,551.32

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Solution

The fourth proportional to 191,213.39, 287,958.38 and 166,551.32 is: 250,818.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,213.39 : 287,958.38 = 166,551.32 : x
  2. Step 2: Convert to fraction form
    191,213.39/287,958.38 = 166,551.32/x
  3. Step 3: Cross multiply
    191,213.39x = 287,958.38 × 166,551.32
  4. Step 4: Simplify right side
    191,213.39x = 47,959,848,181.20
  5. Step 5: Solve for x
    x = 47,959,848,181.20/191,213.39
  6. Step 6: Final answer
    x = 250,818.46

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.