Home / 442,945.77-664,515.56-143,456.63

Finding the Fourth Proportional to 442,945.77, 664,515.56 and 143,456.63

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Solution

The fourth proportional to 442,945.77, 664,515.56 and 143,456.63 is: 215,216.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,945.77 : 664,515.56 = 143,456.63 : x
  2. Step 2: Convert to fraction form
    442,945.77/664,515.56 = 143,456.63/x
  3. Step 3: Cross multiply
    442,945.77x = 664,515.56 × 143,456.63
  4. Step 4: Simplify right side
    442,945.77x = 95,329,162,820.16
  5. Step 5: Solve for x
    x = 95,329,162,820.16/442,945.77
  6. Step 6: Final answer
    x = 215,216.33

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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.