Home / 287,601.17-396,919.24-172,917.32

Finding the Fourth Proportional to 287,601.17, 396,919.24 and 172,917.32

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Solution

The fourth proportional to 287,601.17, 396,919.24 and 172,917.32 is: 238,643.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,601.17 : 396,919.24 = 172,917.32 : x
  2. Step 2: Convert to fraction form
    287,601.17/396,919.24 = 172,917.32/x
  3. Step 3: Cross multiply
    287,601.17x = 396,919.24 × 172,917.32
  4. Step 4: Simplify right side
    287,601.17x = 68,634,208,820.35
  5. Step 5: Solve for x
    x = 68,634,208,820.35/287,601.17
  6. Step 6: Final answer
    x = 238,643.71

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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.