Home / 239,408.31-330,383.39-131,980.17

Finding the Fourth Proportional to 239,408.31, 330,383.39 and 131,980.17

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Solution

The fourth proportional to 239,408.31, 330,383.39 and 131,980.17 is: 182,132.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,408.31 : 330,383.39 = 131,980.17 : x
  2. Step 2: Convert to fraction form
    239,408.31/330,383.39 = 131,980.17/x
  3. Step 3: Cross multiply
    239,408.31x = 330,383.39 × 131,980.17
  4. Step 4: Simplify right side
    239,408.31x = 43,604,055,317.48
  5. Step 5: Solve for x
    x = 43,604,055,317.48/239,408.31
  6. Step 6: Final answer
    x = 182,132.59

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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.