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Finding the Fourth Proportional to 220,476.92, 330,717.20 and 70,717.50

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Solution

The fourth proportional to 220,476.92, 330,717.20 and 70,717.50 is: 106,076.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,476.92 : 330,717.20 = 70,717.50 : x
  2. Step 2: Convert to fraction form
    220,476.92/330,717.20 = 70,717.50/x
  3. Step 3: Cross multiply
    220,476.92x = 330,717.20 × 70,717.50
  4. Step 4: Simplify right side
    220,476.92x = 23,387,493,237.41
  5. Step 5: Solve for x
    x = 23,387,493,237.41/220,476.92
  6. Step 6: Final answer
    x = 106,076.83

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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.