Home / 220,727.24-304,597.86-128,864.12

Finding the Fourth Proportional to 220,727.24, 304,597.86 and 128,864.12

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Solution

The fourth proportional to 220,727.24, 304,597.86 and 128,864.12 is: 177,829.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,727.24 : 304,597.86 = 128,864.12 : x
  2. Step 2: Convert to fraction form
    220,727.24/304,597.86 = 128,864.12/x
  3. Step 3: Cross multiply
    220,727.24x = 304,597.86 × 128,864.12
  4. Step 4: Simplify right side
    220,727.24x = 39,251,735,182.78
  5. Step 5: Solve for x
    x = 39,251,735,182.78/220,727.24
  6. Step 6: Final answer
    x = 177,829.14

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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.