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Finding the Fourth Proportional to 220,236.84, 330,404.46 and 70,486.11

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Solution

The fourth proportional to 220,236.84, 330,404.46 and 70,486.11 is: 105,744.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,236.84 : 330,404.46 = 70,486.11 : x
  2. Step 2: Convert to fraction form
    220,236.84/330,404.46 = 70,486.11/x
  3. Step 3: Cross multiply
    220,236.84x = 330,404.46 × 70,486.11
  4. Step 4: Simplify right side
    220,236.84x = 23,288,925,112.05
  5. Step 5: Solve for x
    x = 23,288,925,112.05/220,236.84
  6. Step 6: Final answer
    x = 105,744.91

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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.