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Finding the Fourth Proportional to 192,333.66, 288,471.30 and 67,645.50

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Solution

The fourth proportional to 192,333.66, 288,471.30 and 67,645.50 is: 101,457.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,333.66 : 288,471.30 = 67,645.50 : x
  2. Step 2: Convert to fraction form
    192,333.66/288,471.30 = 67,645.50/x
  3. Step 3: Cross multiply
    192,333.66x = 288,471.30 × 67,645.50
  4. Step 4: Simplify right side
    192,333.66x = 19,513,785,324.15
  5. Step 5: Solve for x
    x = 19,513,785,324.15/192,333.66
  6. Step 6: Final answer
    x = 101,457.98

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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.