Home / 204,749.49-282,728.43-128,396.46

Finding the Fourth Proportional to 204,749.49, 282,728.43 and 128,396.46

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Solution

The fourth proportional to 204,749.49, 282,728.43 and 128,396.46 is: 177,296.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,749.49 : 282,728.43 = 128,396.46 : x
  2. Step 2: Convert to fraction form
    204,749.49/282,728.43 = 128,396.46/x
  3. Step 3: Cross multiply
    204,749.49x = 282,728.43 × 128,396.46
  4. Step 4: Simplify right side
    204,749.49x = 36,301,329,553.36
  5. Step 5: Solve for x
    x = 36,301,329,553.36/204,749.49
  6. Step 6: Final answer
    x = 177,296.31

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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.