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Finding the Fourth Proportional to 186,168.51, 279,370.77 and 79,553.21

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Solution

The fourth proportional to 186,168.51, 279,370.77 and 79,553.21 is: 119,380.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,168.51 : 279,370.77 = 79,553.21 : x
  2. Step 2: Convert to fraction form
    186,168.51/279,370.77 = 79,553.21/x
  3. Step 3: Cross multiply
    186,168.51x = 279,370.77 × 79,553.21
  4. Step 4: Simplify right side
    186,168.51x = 22,224,839,838.49
  5. Step 5: Solve for x
    x = 22,224,839,838.49/186,168.51
  6. Step 6: Final answer
    x = 119,380.23

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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.