Home / 320,333.40-442,021.64-177,073.97

Finding the Fourth Proportional to 320,333.40, 442,021.64 and 177,073.97

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Solution

The fourth proportional to 320,333.40, 442,021.64 and 177,073.97 is: 244,340.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,333.40 : 442,021.64 = 177,073.97 : x
  2. Step 2: Convert to fraction form
    320,333.40/442,021.64 = 177,073.97/x
  3. Step 3: Cross multiply
    320,333.40x = 442,021.64 × 177,073.97
  4. Step 4: Simplify right side
    320,333.40x = 78,270,523,525.23
  5. Step 5: Solve for x
    x = 78,270,523,525.23/320,333.40
  6. Step 6: Final answer
    x = 244,340.81

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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.