Home / 442,944.87-664,514.20-143,455.72

Finding the Fourth Proportional to 442,944.87, 664,514.20 and 143,455.72

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Solution

The fourth proportional to 442,944.87, 664,514.20 and 143,455.72 is: 215,214.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,944.87 : 664,514.20 = 143,455.72 : x
  2. Step 2: Convert to fraction form
    442,944.87/664,514.20 = 143,455.72/x
  3. Step 3: Cross multiply
    442,944.87x = 664,514.20 × 143,455.72
  4. Step 4: Simplify right side
    442,944.87x = 95,328,365,682.47
  5. Step 5: Solve for x
    x = 95,328,365,682.47/442,944.87
  6. Step 6: Final answer
    x = 215,214.97

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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.