Home / 308,822.08-426,138.66-172,863.64

Finding the Fourth Proportional to 308,822.08, 426,138.66 and 172,863.64

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Solution

The fourth proportional to 308,822.08, 426,138.66 and 172,863.64 is: 238,531.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,822.08 : 426,138.66 = 172,863.64 : x
  2. Step 2: Convert to fraction form
    308,822.08/426,138.66 = 172,863.64/x
  3. Step 3: Cross multiply
    308,822.08x = 426,138.66 × 172,863.64
  4. Step 4: Simplify right side
    308,822.08x = 73,663,879,912.32
  5. Step 5: Solve for x
    x = 73,663,879,912.32/308,822.08
  6. Step 6: Final answer
    x = 238,531.78

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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.