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Finding the Fourth Proportional to 192,665.34, 289,022.63 and 74,370.51

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Solution

The fourth proportional to 192,665.34, 289,022.63 and 74,370.51 is: 111,565.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,665.34 : 289,022.63 = 74,370.51 : x
  2. Step 2: Convert to fraction form
    192,665.34/289,022.63 = 74,370.51/x
  3. Step 3: Cross multiply
    192,665.34x = 289,022.63 × 74,370.51
  4. Step 4: Simplify right side
    192,665.34x = 21,494,760,022.79
  5. Step 5: Solve for x
    x = 21,494,760,022.79/192,665.34
  6. Step 6: Final answer
    x = 111,565.27

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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.