Home / 238,705.25-329,406.66-131,275.28

Finding the Fourth Proportional to 238,705.25, 329,406.66 and 131,275.28

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Solution

The fourth proportional to 238,705.25, 329,406.66 and 131,275.28 is: 181,156.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,705.25 : 329,406.66 = 131,275.28 : x
  2. Step 2: Convert to fraction form
    238,705.25/329,406.66 = 131,275.28/x
  3. Step 3: Cross multiply
    238,705.25x = 329,406.66 × 131,275.28
  4. Step 4: Simplify right side
    238,705.25x = 43,242,949,878.33
  5. Step 5: Solve for x
    x = 43,242,949,878.33/238,705.25
  6. Step 6: Final answer
    x = 181,156.26

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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.