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Finding the Fourth Proportional to 427,815, 590,540.22 and 248,967

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Solution

The fourth proportional to 427,815, 590,540.22 and 248,967 is: 343,664.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,815 : 590,540.22 = 248,967 : x
  2. Step 2: Convert to fraction form
    427,815/590,540.22 = 248,967/x
  3. Step 3: Cross multiply
    427,815x = 590,540.22 × 248,967
  4. Step 4: Simplify right side
    427,815x = 147,025,026,952.74
  5. Step 5: Solve for x
    x = 147,025,026,952.74/427,815
  6. Step 6: Final answer
    x = 343,664.96

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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.