Home / 442,804.20-664,206.30-143,306.70

Finding the Fourth Proportional to 442,804.20, 664,206.30 and 143,306.70

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Solution

The fourth proportional to 442,804.20, 664,206.30 and 143,306.70 is: 214,960.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,804.20 : 664,206.30 = 143,306.70 : x
  2. Step 2: Convert to fraction form
    442,804.20/664,206.30 = 143,306.70/x
  3. Step 3: Cross multiply
    442,804.20x = 664,206.30 × 143,306.70
  4. Step 4: Simplify right side
    442,804.20x = 95,185,212,972.21
  5. Step 5: Solve for x
    x = 95,185,212,972.21/442,804.20
  6. Step 6: Final answer
    x = 214,960.05

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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.