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Finding the Fourth Proportional to 351,874.57, 485,575.06 and 208,549.52

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Solution

The fourth proportional to 351,874.57, 485,575.06 and 208,549.52 is: 287,791.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,874.57 : 485,575.06 = 208,549.52 : x
  2. Step 2: Convert to fraction form
    351,874.57/485,575.06 = 208,549.52/x
  3. Step 3: Cross multiply
    351,874.57x = 485,575.06 × 208,549.52
  4. Step 4: Simplify right side
    351,874.57x = 101,266,445,686.97
  5. Step 5: Solve for x
    x = 101,266,445,686.97/351,874.57
  6. Step 6: Final answer
    x = 287,791.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.