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Finding the Fourth Proportional to 253,687.08, 350,087.40 and 140,509.80

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Solution

The fourth proportional to 253,687.08, 350,087.40 and 140,509.80 is: 193,903.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,687.08 : 350,087.40 = 140,509.80 : x
  2. Step 2: Convert to fraction form
    253,687.08/350,087.40 = 140,509.80/x
  3. Step 3: Cross multiply
    253,687.08x = 350,087.40 × 140,509.80
  4. Step 4: Simplify right side
    253,687.08x = 49,190,710,556.52
  5. Step 5: Solve for x
    x = 49,190,710,556.52/253,687.08
  6. Step 6: Final answer
    x = 193,903.10

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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.