Home / 269,933.52-405,145.98-143,679.78

Finding the Fourth Proportional to 269,933.52, 405,145.98 and 143,679.78

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Solution

The fourth proportional to 269,933.52, 405,145.98 and 143,679.78 is: 215,650.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,933.52 : 405,145.98 = 143,679.78 : x
  2. Step 2: Convert to fraction form
    269,933.52/405,145.98 = 143,679.78/x
  3. Step 3: Cross multiply
    269,933.52x = 405,145.98 × 143,679.78
  4. Step 4: Simplify right side
    269,933.52x = 58,211,285,274.28
  5. Step 5: Solve for x
    x = 58,211,285,274.28/269,933.52
  6. Step 6: Final answer
    x = 215,650.45

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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.