Home / 257,721.12-355,667.36-160,982.28

Finding the Fourth Proportional to 257,721.12, 355,667.36 and 160,982.28

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Solution

The fourth proportional to 257,721.12, 355,667.36 and 160,982.28 is: 222,163.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,721.12 : 355,667.36 = 160,982.28 : x
  2. Step 2: Convert to fraction form
    257,721.12/355,667.36 = 160,982.28/x
  3. Step 3: Cross multiply
    257,721.12x = 355,667.36 × 160,982.28
  4. Step 4: Simplify right side
    257,721.12x = 57,256,141,729.47
  5. Step 5: Solve for x
    x = 57,256,141,729.47/257,721.12
  6. Step 6: Final answer
    x = 222,163.17

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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.