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Finding the Fourth Proportional to 635,277.40, 952,713.78 and 208,714.20

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Solution

The fourth proportional to 635,277.40, 952,713.78 and 208,714.20 is: 313,004.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,277.40 : 952,713.78 = 208,714.20 : x
  2. Step 2: Convert to fraction form
    635,277.40/952,713.78 = 208,714.20/x
  3. Step 3: Cross multiply
    635,277.40x = 952,713.78 × 208,714.20
  4. Step 4: Simplify right side
    635,277.40x = 198,844,894,421.68
  5. Step 5: Solve for x
    x = 198,844,894,421.68/635,277.40
  6. Step 6: Final answer
    x = 313,004.83

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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.