Home / 238,905.79-329,690.06-131,475.81

Finding the Fourth Proportional to 238,905.79, 329,690.06 and 131,475.81

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Solution

The fourth proportional to 238,905.79, 329,690.06 and 131,475.81 is: 181,436.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,905.79 : 329,690.06 = 131,475.81 : x
  2. Step 2: Convert to fraction form
    238,905.79/329,690.06 = 131,475.81/x
  3. Step 3: Cross multiply
    238,905.79x = 329,690.06 × 131,475.81
  4. Step 4: Simplify right side
    238,905.79x = 43,346,267,687.45
  5. Step 5: Solve for x
    x = 43,346,267,687.45/238,905.79
  6. Step 6: Final answer
    x = 181,436.66

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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.