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Finding the Fourth Proportional to 171,394.64, 236,294.28 and 120,338.96

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Solution

The fourth proportional to 171,394.64, 236,294.28 and 120,338.96 is: 165,906.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,394.64 : 236,294.28 = 120,338.96 : x
  2. Step 2: Convert to fraction form
    171,394.64/236,294.28 = 120,338.96/x
  3. Step 3: Cross multiply
    171,394.64x = 236,294.28 × 120,338.96
  4. Step 4: Simplify right side
    171,394.64x = 28,435,407,909.15
  5. Step 5: Solve for x
    x = 28,435,407,909.15/171,394.64
  6. Step 6: Final answer
    x = 165,906.05

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1.5x scale

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.