Home / 238,579.22-329,243.43-131,153.78

Finding the Fourth Proportional to 238,579.22, 329,243.43 and 131,153.78

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Solution

The fourth proportional to 238,579.22, 329,243.43 and 131,153.78 is: 180,994.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,579.22 : 329,243.43 = 131,153.78 : x
  2. Step 2: Convert to fraction form
    238,579.22/329,243.43 = 131,153.78/x
  3. Step 3: Cross multiply
    238,579.22x = 329,243.43 × 131,153.78
  4. Step 4: Simplify right side
    238,579.22x = 43,181,521,699.60
  5. Step 5: Solve for x
    x = 43,181,521,699.60/238,579.22
  6. Step 6: Final answer
    x = 180,994.48

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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.