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Finding the Fourth Proportional to 331,709.85, 457,649.47 and 270,350.53

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Solution

The fourth proportional to 331,709.85, 457,649.47 and 270,350.53 is: 372,993.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,709.85 : 457,649.47 = 270,350.53 : x
  2. Step 2: Convert to fraction form
    331,709.85/457,649.47 = 270,350.53/x
  3. Step 3: Cross multiply
    331,709.85x = 457,649.47 × 270,350.53
  4. Step 4: Simplify right side
    331,709.85x = 123,725,777,444.60
  5. Step 5: Solve for x
    x = 123,725,777,444.60/331,709.85
  6. Step 6: Final answer
    x = 372,993.98

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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.