Home / 228,117.30-341,895.69-128,067.72

Finding the Fourth Proportional to 228,117.30, 341,895.69 and 128,067.72

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Solution

The fourth proportional to 228,117.30, 341,895.69 and 128,067.72 is: 191,944.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,117.30 : 341,895.69 = 128,067.72 : x
  2. Step 2: Convert to fraction form
    228,117.30/341,895.69 = 128,067.72/x
  3. Step 3: Cross multiply
    228,117.30x = 341,895.69 × 128,067.72
  4. Step 4: Simplify right side
    228,117.30x = 43,785,801,496.13
  5. Step 5: Solve for x
    x = 43,785,801,496.13/228,117.30
  6. Step 6: Final answer
    x = 191,944.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.