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Finding the Fourth Proportional to 353,908.78, 488,377.29 and 192,763.06

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Solution

The fourth proportional to 353,908.78, 488,377.29 and 192,763.06 is: 266,003.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,908.78 : 488,377.29 = 192,763.06 : x
  2. Step 2: Convert to fraction form
    353,908.78/488,377.29 = 192,763.06/x
  3. Step 3: Cross multiply
    353,908.78x = 488,377.29 × 192,763.06
  4. Step 4: Simplify right side
    353,908.78x = 94,141,100,854.91
  5. Step 5: Solve for x
    x = 94,141,100,854.91/353,908.78
  6. Step 6: Final answer
    x = 266,003.86

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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.