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Finding the Fourth Proportional to 250,079.44, 375,152.12 and 81,540.60

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Solution

The fourth proportional to 250,079.44, 375,152.12 and 81,540.60 is: 122,321.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,079.44 : 375,152.12 = 81,540.60 : x
  2. Step 2: Convert to fraction form
    250,079.44/375,152.12 = 81,540.60/x
  3. Step 3: Cross multiply
    250,079.44x = 375,152.12 × 81,540.60
  4. Step 4: Simplify right side
    250,079.44x = 30,590,128,956.07
  5. Step 5: Solve for x
    x = 30,590,128,956.07/250,079.44
  6. Step 6: Final answer
    x = 122,321.65

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Why These Related Problems?

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