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Finding the Fourth Proportional to 186,759.92, 280,085.22 and 74,402.80

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Solution

The fourth proportional to 186,759.92, 280,085.22 and 74,402.80 is: 111,582.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,759.92 : 280,085.22 = 74,402.80 : x
  2. Step 2: Convert to fraction form
    186,759.92/280,085.22 = 74,402.80/x
  3. Step 3: Cross multiply
    186,759.92x = 280,085.22 × 74,402.80
  4. Step 4: Simplify right side
    186,759.92x = 20,839,124,606.62
  5. Step 5: Solve for x
    x = 20,839,124,606.62/186,759.92
  6. Step 6: Final answer
    x = 111,582.42

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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.