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Finding the Fourth Proportional to 635,279.94, 952,717.50 and 208,716.72

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Solution

The fourth proportional to 635,279.94, 952,717.50 and 208,716.72 is: 313,008.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,279.94 : 952,717.50 = 208,716.72 : x
  2. Step 2: Convert to fraction form
    635,279.94/952,717.50 = 208,716.72/x
  3. Step 3: Cross multiply
    635,279.94x = 952,717.50 × 208,716.72
  4. Step 4: Simplify right side
    635,279.94x = 198,848,071,686.60
  5. Step 5: Solve for x
    x = 198,848,071,686.60/635,279.94
  6. Step 6: Final answer
    x = 313,008.58

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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.