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Finding the Fourth Proportional to 379,920.75, 570,077.97 and 192,932.25

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Solution

The fourth proportional to 379,920.75, 570,077.97 and 192,932.25 is: 289,498.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,920.75 : 570,077.97 = 192,932.25 : x
  2. Step 2: Convert to fraction form
    379,920.75/570,077.97 = 192,932.25/x
  3. Step 3: Cross multiply
    379,920.75x = 570,077.97 × 192,932.25
  4. Step 4: Simplify right side
    379,920.75x = 109,986,425,427.53
  5. Step 5: Solve for x
    x = 109,986,425,427.53/379,920.75
  6. Step 6: Final answer
    x = 289,498.34

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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.