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Finding the Fourth Proportional to 253,953.75, 350,454.24 and 139,231.02

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Solution

The fourth proportional to 253,953.75, 350,454.24 and 139,231.02 is: 192,137.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,953.75 : 350,454.24 = 139,231.02 : x
  2. Step 2: Convert to fraction form
    253,953.75/350,454.24 = 139,231.02/x
  3. Step 3: Cross multiply
    253,953.75x = 350,454.24 × 139,231.02
  4. Step 4: Simplify right side
    253,953.75x = 48,794,101,298.52
  5. Step 5: Solve for x
    x = 48,794,101,298.52/253,953.75
  6. Step 6: Final answer
    x = 192,137.75

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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.