Home / 238,666.64-329,353-131,236.56

Finding the Fourth Proportional to 238,666.64, 329,353 and 131,236.56

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Solution

The fourth proportional to 238,666.64, 329,353 and 131,236.56 is: 181,102.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,666.64 : 329,353 = 131,236.56 : x
  2. Step 2: Convert to fraction form
    238,666.64/329,353 = 131,236.56/x
  3. Step 3: Cross multiply
    238,666.64x = 329,353 × 131,236.56
  4. Step 4: Simplify right side
    238,666.64x = 43,223,154,745.68
  5. Step 5: Solve for x
    x = 43,223,154,745.68/238,666.64
  6. Step 6: Final answer
    x = 181,102.62

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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.