Home / 238,739.20-329,349.64-143,079.82

Finding the Fourth Proportional to 238,739.20, 329,349.64 and 143,079.82

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Solution

The fourth proportional to 238,739.20, 329,349.64 and 143,079.82 is: 197,383.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,739.20 : 329,349.64 = 143,079.82 : x
  2. Step 2: Convert to fraction form
    238,739.20/329,349.64 = 143,079.82/x
  3. Step 3: Cross multiply
    238,739.20x = 329,349.64 × 143,079.82
  4. Step 4: Simplify right side
    238,739.20x = 47,123,287,208.26
  5. Step 5: Solve for x
    x = 47,123,287,208.26/238,739.20
  6. Step 6: Final answer
    x = 197,383.95

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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.