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Finding the Fourth Proportional to 192,625.74, 288,866.76 and 66,230.20

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Solution

The fourth proportional to 192,625.74, 288,866.76 and 66,230.20 is: 99,320.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,625.74 : 288,866.76 = 66,230.20 : x
  2. Step 2: Convert to fraction form
    192,625.74/288,866.76 = 66,230.20/x
  3. Step 3: Cross multiply
    192,625.74x = 288,866.76 × 66,230.20
  4. Step 4: Simplify right side
    192,625.74x = 19,131,703,288.15
  5. Step 5: Solve for x
    x = 19,131,703,288.15/192,625.74
  6. Step 6: Final answer
    x = 99,320.60

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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.