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Finding the Fourth Proportional to 239,168, 330,051.84 and 138,624.32

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Solution

The fourth proportional to 239,168, 330,051.84 and 138,624.32 is: 191,301.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,168 : 330,051.84 = 138,624.32 : x
  2. Step 2: Convert to fraction form
    239,168/330,051.84 = 138,624.32/x
  3. Step 3: Cross multiply
    239,168x = 330,051.84 × 138,624.32
  4. Step 4: Simplify right side
    239,168x = 45,753,211,884.75
  5. Step 5: Solve for x
    x = 45,753,211,884.75/239,168
  6. Step 6: Final answer
    x = 191,301.56

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.