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Finding the Fourth Proportional to 316,997.91, 475,498.75 and 80,341.29

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Solution

The fourth proportional to 316,997.91, 475,498.75 and 80,341.29 is: 120,512.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,997.91 : 475,498.75 = 80,341.29 : x
  2. Step 2: Convert to fraction form
    316,997.91/475,498.75 = 80,341.29/x
  3. Step 3: Cross multiply
    316,997.91x = 475,498.75 × 80,341.29
  4. Step 4: Simplify right side
    316,997.91x = 38,202,182,968.39
  5. Step 5: Solve for x
    x = 38,202,182,968.39/316,997.91
  6. Step 6: Final answer
    x = 120,512.41

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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.