Home / 293,691.10-405,284.16-172,839

Finding the Fourth Proportional to 293,691.10, 405,284.16 and 172,839

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Solution

The fourth proportional to 293,691.10, 405,284.16 and 172,839 is: 238,512.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,691.10 : 405,284.16 = 172,839 : x
  2. Step 2: Convert to fraction form
    293,691.10/405,284.16 = 172,839/x
  3. Step 3: Cross multiply
    293,691.10x = 405,284.16 × 172,839
  4. Step 4: Simplify right side
    293,691.10x = 70,048,909,578.39
  5. Step 5: Solve for x
    x = 70,048,909,578.39/293,691.10
  6. Step 6: Final answer
    x = 238,512.20

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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.