Home / 442,827.20-664,240.80-143,329.70

Finding the Fourth Proportional to 442,827.20, 664,240.80 and 143,329.70

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Solution

The fourth proportional to 442,827.20, 664,240.80 and 143,329.70 is: 214,994.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,827.20 : 664,240.80 = 143,329.70 : x
  2. Step 2: Convert to fraction form
    442,827.20/664,240.80 = 143,329.70/x
  3. Step 3: Cross multiply
    442,827.20x = 664,240.80 × 143,329.70
  4. Step 4: Simplify right side
    442,827.20x = 95,205,434,591.76
  5. Step 5: Solve for x
    x = 95,205,434,591.76/442,827.20
  6. Step 6: Final answer
    x = 214,994.55

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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.