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Finding the Fourth Proportional to 253,889.80, 350,367.20 and 140,712.56

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Solution

The fourth proportional to 253,889.80, 350,367.20 and 140,712.56 is: 194,182.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,889.80 : 350,367.20 = 140,712.56 : x
  2. Step 2: Convert to fraction form
    253,889.80/350,367.20 = 140,712.56/x
  3. Step 3: Cross multiply
    253,889.80x = 350,367.20 × 140,712.56
  4. Step 4: Simplify right side
    253,889.80x = 49,301,065,652.03
  5. Step 5: Solve for x
    x = 49,301,065,652.03/253,889.80
  6. Step 6: Final answer
    x = 194,182.93

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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.