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Finding the Fourth Proportional to 635,212.91, 952,618.62 and 208,678.70

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Solution

The fourth proportional to 635,212.91, 952,618.62 and 208,678.70 is: 312,952.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,212.91 : 952,618.62 = 208,678.70 : x
  2. Step 2: Convert to fraction form
    635,212.91/952,618.62 = 208,678.70/x
  3. Step 3: Cross multiply
    635,212.91x = 952,618.62 × 208,678.70
  4. Step 4: Simplify right side
    635,212.91x = 198,791,215,217.39
  5. Step 5: Solve for x
    x = 198,791,215,217.39/635,212.91
  6. Step 6: Final answer
    x = 312,952.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.