Home / 220,305.79-304,021.24-124,830.69

Finding the Fourth Proportional to 220,305.79, 304,021.24 and 124,830.69

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Solution

The fourth proportional to 220,305.79, 304,021.24 and 124,830.69 is: 172,265.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,305.79 : 304,021.24 = 124,830.69 : x
  2. Step 2: Convert to fraction form
    220,305.79/304,021.24 = 124,830.69/x
  3. Step 3: Cross multiply
    220,305.79x = 304,021.24 × 124,830.69
  4. Step 4: Simplify right side
    220,305.79x = 37,951,181,163.86
  5. Step 5: Solve for x
    x = 37,951,181,163.86/220,305.79
  6. Step 6: Final answer
    x = 172,265.93

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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.