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Finding the Fourth Proportional to 635,280.94, 952,719 and 208,717.72

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Solution

The fourth proportional to 635,280.94, 952,719 and 208,717.72 is: 313,010.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,280.94 : 952,719 = 208,717.72 : x
  2. Step 2: Convert to fraction form
    635,280.94/952,719 = 208,717.72/x
  3. Step 3: Cross multiply
    635,280.94x = 952,719 × 208,717.72
  4. Step 4: Simplify right side
    635,280.94x = 198,849,337,480.68
  5. Step 5: Solve for x
    x = 198,849,337,480.68/635,280.94
  6. Step 6: Final answer
    x = 313,010.08

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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.