Home / 308,865.44-426,234.48-172,899.66

Finding the Fourth Proportional to 308,865.44, 426,234.48 and 172,899.66

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Solution

The fourth proportional to 308,865.44, 426,234.48 and 172,899.66 is: 238,601.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,865.44 : 426,234.48 = 172,899.66 : x
  2. Step 2: Convert to fraction form
    308,865.44/426,234.48 = 172,899.66/x
  3. Step 3: Cross multiply
    308,865.44x = 426,234.48 × 172,899.66
  4. Step 4: Simplify right side
    308,865.44x = 73,695,796,672.28
  5. Step 5: Solve for x
    x = 73,695,796,672.28/308,865.44
  6. Step 6: Final answer
    x = 238,601.63

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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.