Home / 445,817.07-668,834.52-142,211.28

Finding the Fourth Proportional to 445,817.07, 668,834.52 and 142,211.28

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Solution

The fourth proportional to 445,817.07, 668,834.52 and 142,211.28 is: 213,351.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,817.07 : 668,834.52 = 142,211.28 : x
  2. Step 2: Convert to fraction form
    445,817.07/668,834.52 = 142,211.28/x
  3. Step 3: Cross multiply
    445,817.07x = 668,834.52 × 142,211.28
  4. Step 4: Simplify right side
    445,817.07x = 95,115,813,197.39
  5. Step 5: Solve for x
    x = 95,115,813,197.39/445,817.07
  6. Step 6: Final answer
    x = 213,351.66

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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.