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Finding the Fourth Proportional to 181,978.56, 272,872.80 and 57,286.08

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Solution

The fourth proportional to 181,978.56, 272,872.80 and 57,286.08 is: 85,899.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,978.56 : 272,872.80 = 57,286.08 : x
  2. Step 2: Convert to fraction form
    181,978.56/272,872.80 = 57,286.08/x
  3. Step 3: Cross multiply
    181,978.56x = 272,872.80 × 57,286.08
  4. Step 4: Simplify right side
    181,978.56x = 15,631,813,050.62
  5. Step 5: Solve for x
    x = 15,631,813,050.62/181,978.56
  6. Step 6: Final answer
    x = 85,899.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.