Home / 648,198.20-972,290.90-204,966.20

Finding the Fourth Proportional to 648,198.20, 972,290.90 and 204,966.20

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Solution

The fourth proportional to 648,198.20, 972,290.90 and 204,966.20 is: 307,447.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,198.20 : 972,290.90 = 204,966.20 : x
  2. Step 2: Convert to fraction form
    648,198.20/972,290.90 = 204,966.20/x
  3. Step 3: Cross multiply
    648,198.20x = 972,290.90 × 204,966.20
  4. Step 4: Simplify right side
    648,198.20x = 199,286,771,067.58
  5. Step 5: Solve for x
    x = 199,286,771,067.58/648,198.20
  6. Step 6: Final answer
    x = 307,447.28

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1.5x scale

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.