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Finding the Fourth Proportional to 192,502.54, 288,803 and 80,145.41

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Solution

The fourth proportional to 192,502.54, 288,803 and 80,145.41 is: 120,238.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,502.54 : 288,803 = 80,145.41 : x
  2. Step 2: Convert to fraction form
    192,502.54/288,803 = 80,145.41/x
  3. Step 3: Cross multiply
    192,502.54x = 288,803 × 80,145.41
  4. Step 4: Simplify right side
    192,502.54x = 23,146,234,844.23
  5. Step 5: Solve for x
    x = 23,146,234,844.23/192,502.54
  6. Step 6: Final answer
    x = 120,238.60

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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.