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Finding the Fourth Proportional to 192,451.69, 288,603.74 and 66,068.38

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Solution

The fourth proportional to 192,451.69, 288,603.74 and 66,068.38 is: 99,077.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,451.69 : 288,603.74 = 66,068.38 : x
  2. Step 2: Convert to fraction form
    192,451.69/288,603.74 = 66,068.38/x
  3. Step 3: Cross multiply
    192,451.69x = 288,603.74 × 66,068.38
  4. Step 4: Simplify right side
    192,451.69x = 19,067,581,233.40
  5. Step 5: Solve for x
    x = 19,067,581,233.40/192,451.69
  6. Step 6: Final answer
    x = 99,077.23

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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.