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Finding the Fourth Proportional to 351,874.27, 485,587.53 and 190,729.96

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Solution

The fourth proportional to 351,874.27, 485,587.53 and 190,729.96 is: 263,207.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,874.27 : 485,587.53 = 190,729.96 : x
  2. Step 2: Convert to fraction form
    351,874.27/485,587.53 = 190,729.96/x
  3. Step 3: Cross multiply
    351,874.27x = 485,587.53 × 190,729.96
  4. Step 4: Simplify right side
    351,874.27x = 92,616,088,959.43
  5. Step 5: Solve for x
    x = 92,616,088,959.43/351,874.27
  6. Step 6: Final answer
    x = 263,207.91

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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.