Home / 320,424.45-442,277.78-211,608.24

Finding the Fourth Proportional to 320,424.45, 442,277.78 and 211,608.24

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Solution

The fourth proportional to 320,424.45, 442,277.78 and 211,608.24 is: 292,080.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,424.45 : 442,277.78 = 211,608.24 : x
  2. Step 2: Convert to fraction form
    320,424.45/442,277.78 = 211,608.24/x
  3. Step 3: Cross multiply
    320,424.45x = 442,277.78 × 211,608.24
  4. Step 4: Simplify right side
    320,424.45x = 93,589,622,616.91
  5. Step 5: Solve for x
    x = 93,589,622,616.91/320,424.45
  6. Step 6: Final answer
    x = 292,080.15

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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.