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Finding the Fourth Proportional to 329,228.75, 493,839.52 and 79,910.75

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Solution

The fourth proportional to 329,228.75, 493,839.52 and 79,910.75 is: 119,865.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,228.75 : 493,839.52 = 79,910.75 : x
  2. Step 2: Convert to fraction form
    329,228.75/493,839.52 = 79,910.75/x
  3. Step 3: Cross multiply
    329,228.75x = 493,839.52 × 79,910.75
  4. Step 4: Simplify right side
    329,228.75x = 39,463,086,422.84
  5. Step 5: Solve for x
    x = 39,463,086,422.84/329,228.75
  6. Step 6: Final answer
    x = 119,865.25

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1.5x scale

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.