Home / 238,720.64-329,434.36-131,297.90

Finding the Fourth Proportional to 238,720.64, 329,434.36 and 131,297.90

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Solution

The fourth proportional to 238,720.64, 329,434.36 and 131,297.90 is: 181,191.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,720.64 : 329,434.36 = 131,297.90 : x
  2. Step 2: Convert to fraction form
    238,720.64/329,434.36 = 131,297.90/x
  3. Step 3: Cross multiply
    238,720.64x = 329,434.36 × 131,297.90
  4. Step 4: Simplify right side
    238,720.64x = 43,254,037,680.43
  5. Step 5: Solve for x
    x = 43,254,037,680.43/238,720.64
  6. Step 6: Final answer
    x = 181,191.03

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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.