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Finding the Fourth Proportional to 239,171.68, 330,057.30 and 131,742.10

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Solution

The fourth proportional to 239,171.68, 330,057.30 and 131,742.10 is: 181,804.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,171.68 : 330,057.30 = 131,742.10 : x
  2. Step 2: Convert to fraction form
    239,171.68/330,057.30 = 131,742.10/x
  3. Step 3: Cross multiply
    239,171.68x = 330,057.30 × 131,742.10
  4. Step 4: Simplify right side
    239,171.68x = 43,482,441,822.33
  5. Step 5: Solve for x
    x = 43,482,441,822.33/239,171.68
  6. Step 6: Final answer
    x = 181,804.31

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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.