Home / 220,661.28-304,502.88-122,538.48

Finding the Fourth Proportional to 220,661.28, 304,502.88 and 122,538.48

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Solution

The fourth proportional to 220,661.28, 304,502.88 and 122,538.48 is: 169,097.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,661.28 : 304,502.88 = 122,538.48 : x
  2. Step 2: Convert to fraction form
    220,661.28/304,502.88 = 122,538.48/x
  3. Step 3: Cross multiply
    220,661.28x = 304,502.88 × 122,538.48
  4. Step 4: Simplify right side
    220,661.28x = 37,313,320,070.82
  5. Step 5: Solve for x
    x = 37,313,320,070.82/220,661.28
  6. Step 6: Final answer
    x = 169,097.72

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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.