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Finding the Fourth Proportional to 192,857.13, 289,304.72 and 66,480.74

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Solution

The fourth proportional to 192,857.13, 289,304.72 and 66,480.74 is: 99,727.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,857.13 : 289,304.72 = 66,480.74 : x
  2. Step 2: Convert to fraction form
    192,857.13/289,304.72 = 66,480.74/x
  3. Step 3: Cross multiply
    192,857.13x = 289,304.72 × 66,480.74
  4. Step 4: Simplify right side
    192,857.13x = 19,233,190,092.17
  5. Step 5: Solve for x
    x = 19,233,190,092.17/192,857.13
  6. Step 6: Final answer
    x = 99,727.66

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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.