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Finding the Fourth Proportional to 395,820, 546,233.52 and 236,844

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Solution

The fourth proportional to 395,820, 546,233.52 and 236,844 is: 326,845.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,820 : 546,233.52 = 236,844 : x
  2. Step 2: Convert to fraction form
    395,820/546,233.52 = 236,844/x
  3. Step 3: Cross multiply
    395,820x = 546,233.52 × 236,844
  4. Step 4: Simplify right side
    395,820x = 129,372,131,810.88
  5. Step 5: Solve for x
    x = 129,372,131,810.88/395,820
  6. Step 6: Final answer
    x = 326,845.87

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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.