Home / 320,605.44-442,448.64-199,818.24

Finding the Fourth Proportional to 320,605.44, 442,448.64 and 199,818.24

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Solution

The fourth proportional to 320,605.44, 442,448.64 and 199,818.24 is: 275,757.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,605.44 : 442,448.64 = 199,818.24 : x
  2. Step 2: Convert to fraction form
    320,605.44/442,448.64 = 199,818.24/x
  3. Step 3: Cross multiply
    320,605.44x = 442,448.64 × 199,818.24
  4. Step 4: Simplify right side
    320,605.44x = 88,409,308,535.19
  5. Step 5: Solve for x
    x = 88,409,308,535.19/320,605.44
  6. Step 6: Final answer
    x = 275,757.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.