Home / 320,936.40-442,906.08-177,696.46

Finding the Fourth Proportional to 320,936.40, 442,906.08 and 177,696.46

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Solution

The fourth proportional to 320,936.40, 442,906.08 and 177,696.46 is: 245,228.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,936.40 : 442,906.08 = 177,696.46 : x
  2. Step 2: Convert to fraction form
    320,936.40/442,906.08 = 177,696.46/x
  3. Step 3: Cross multiply
    320,936.40x = 442,906.08 × 177,696.46
  4. Step 4: Simplify right side
    320,936.40x = 78,702,842,528.48
  5. Step 5: Solve for x
    x = 78,702,842,528.48/320,936.40
  6. Step 6: Final answer
    x = 245,228.78

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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.