Home / 442,954.20-663,977.70-217,968.60

Finding the Fourth Proportional to 442,954.20, 663,977.70 and 217,968.60

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Solution

The fourth proportional to 442,954.20, 663,977.70 and 217,968.60 is: 326,729.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,954.20 : 663,977.70 = 217,968.60 : x
  2. Step 2: Convert to fraction form
    442,954.20/663,977.70 = 217,968.60/x
  3. Step 3: Cross multiply
    442,954.20x = 663,977.70 × 217,968.60
  4. Step 4: Simplify right side
    442,954.20x = 144,726,289,700.22
  5. Step 5: Solve for x
    x = 144,726,289,700.22/442,954.20
  6. Step 6: Final answer
    x = 326,729.69

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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.