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Finding the Fourth Proportional to 635,261.91, 952,690.55 and 208,698.72

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Solution

The fourth proportional to 635,261.91, 952,690.55 and 208,698.72 is: 312,981.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,261.91 : 952,690.55 = 208,698.72 : x
  2. Step 2: Convert to fraction form
    635,261.91/952,690.55 = 208,698.72/x
  3. Step 3: Cross multiply
    635,261.91x = 952,690.55 × 208,698.72
  4. Step 4: Simplify right side
    635,261.91x = 198,825,297,297.60
  5. Step 5: Solve for x
    x = 198,825,297,297.60/635,261.91
  6. Step 6: Final answer
    x = 312,981.61

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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.