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Finding the Fourth Proportional to 192,777.60, 289,857.60 and 162,364.80

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Solution

The fourth proportional to 192,777.60, 289,857.60 and 162,364.80 is: 244,129.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,777.60 : 289,857.60 = 162,364.80 : x
  2. Step 2: Convert to fraction form
    192,777.60/289,857.60 = 162,364.80/x
  3. Step 3: Cross multiply
    192,777.60x = 289,857.60 × 162,364.80
  4. Step 4: Simplify right side
    192,777.60x = 47,062,671,252.48
  5. Step 5: Solve for x
    x = 47,062,671,252.48/192,777.60
  6. Step 6: Final answer
    x = 244,129.36

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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.