Home / 238,775.31-329,506.47-131,338.98

Finding the Fourth Proportional to 238,775.31, 329,506.47 and 131,338.98

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Solution

The fourth proportional to 238,775.31, 329,506.47 and 131,338.98 is: 181,245.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,775.31 : 329,506.47 = 131,338.98 : x
  2. Step 2: Convert to fraction form
    238,775.31/329,506.47 = 131,338.98/x
  3. Step 3: Cross multiply
    238,775.31x = 329,506.47 × 131,338.98
  4. Step 4: Simplify right side
    238,775.31x = 43,277,043,673.20
  5. Step 5: Solve for x
    x = 43,277,043,673.20/238,775.31
  6. Step 6: Final answer
    x = 181,245.89

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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.