Home / 472,914.42-709,351.78-220,107.95

Finding the Fourth Proportional to 472,914.42, 709,351.78 and 220,107.95

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Solution

The fourth proportional to 472,914.42, 709,351.78 and 220,107.95 is: 330,152.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,914.42 : 709,351.78 = 220,107.95 : x
  2. Step 2: Convert to fraction form
    472,914.42/709,351.78 = 220,107.95/x
  3. Step 3: Cross multiply
    472,914.42x = 709,351.78 × 220,107.95
  4. Step 4: Simplify right side
    472,914.42x = 156,133,965,100.39
  5. Step 5: Solve for x
    x = 156,133,965,100.39/472,914.42
  6. Step 6: Final answer
    x = 330,152.69

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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.