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Finding the Fourth Proportional to 208,600.18, 312,714.68 and 75,450.82

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Solution

The fourth proportional to 208,600.18, 312,714.68 and 75,450.82 is: 113,109.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,600.18 : 312,714.68 = 75,450.82 : x
  2. Step 2: Convert to fraction form
    208,600.18/312,714.68 = 75,450.82/x
  3. Step 3: Cross multiply
    208,600.18x = 312,714.68 × 75,450.82
  4. Step 4: Simplify right side
    208,600.18x = 23,594,578,654.78
  5. Step 5: Solve for x
    x = 23,594,578,654.78/208,600.18
  6. Step 6: Final answer
    x = 113,109.10

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1.5x scale

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.