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Finding the Fourth Proportional to 192,272.40, 288,404.80 and 57,427.79

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Solution

The fourth proportional to 192,272.40, 288,404.80 and 57,427.79 is: 86,140.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,272.40 : 288,404.80 = 57,427.79 : x
  2. Step 2: Convert to fraction form
    192,272.40/288,404.80 = 57,427.79/x
  3. Step 3: Cross multiply
    192,272.40x = 288,404.80 × 57,427.79
  4. Step 4: Simplify right side
    192,272.40x = 16,562,451,460.25
  5. Step 5: Solve for x
    x = 16,562,451,460.25/192,272.40
  6. Step 6: Final answer
    x = 86,140.56

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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.