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Finding the Fourth Proportional to 171,121.42, 256,629.81 and 60,287.50

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Solution

The fourth proportional to 171,121.42, 256,629.81 and 60,287.50 is: 90,412.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,121.42 : 256,629.81 = 60,287.50 : x
  2. Step 2: Convert to fraction form
    171,121.42/256,629.81 = 60,287.50/x
  3. Step 3: Cross multiply
    171,121.42x = 256,629.81 × 60,287.50
  4. Step 4: Simplify right side
    171,121.42x = 15,471,569,670.38
  5. Step 5: Solve for x
    x = 15,471,569,670.38/171,121.42
  6. Step 6: Final answer
    x = 90,412.82

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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.