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Finding the Fourth Proportional to 253,960.64, 350,466.72 and 140,785.28

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Solution

The fourth proportional to 253,960.64, 350,466.72 and 140,785.28 is: 194,284.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,960.64 : 350,466.72 = 140,785.28 : x
  2. Step 2: Convert to fraction form
    253,960.64/350,466.72 = 140,785.28/x
  3. Step 3: Cross multiply
    253,960.64x = 350,466.72 × 140,785.28
  4. Step 4: Simplify right side
    253,960.64x = 49,340,555,305.88
  5. Step 5: Solve for x
    x = 49,340,555,305.88/253,960.64
  6. Step 6: Final answer
    x = 194,284.26

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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.