Home / 238,709.68-329,420.55-131,286.58

Finding the Fourth Proportional to 238,709.68, 329,420.55 and 131,286.58

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Solution

The fourth proportional to 238,709.68, 329,420.55 and 131,286.58 is: 181,176.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,709.68 : 329,420.55 = 131,286.58 : x
  2. Step 2: Convert to fraction form
    238,709.68/329,420.55 = 131,286.58/x
  3. Step 3: Cross multiply
    238,709.68x = 329,420.55 × 131,286.58
  4. Step 4: Simplify right side
    238,709.68x = 43,248,497,391.22
  5. Step 5: Solve for x
    x = 43,248,497,391.22/238,709.68
  6. Step 6: Final answer
    x = 181,176.14

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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.