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Finding the Fourth Proportional to 493,297.62, 739,930.14 and 208,912.20

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Solution

The fourth proportional to 493,297.62, 739,930.14 and 208,912.20 is: 313,361.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,297.62 : 739,930.14 = 208,912.20 : x
  2. Step 2: Convert to fraction form
    493,297.62/739,930.14 = 208,912.20/x
  3. Step 3: Cross multiply
    493,297.62x = 739,930.14 × 208,912.20
  4. Step 4: Simplify right side
    493,297.62x = 154,580,433,393.71
  5. Step 5: Solve for x
    x = 154,580,433,393.71/493,297.62
  6. Step 6: Final answer
    x = 313,361.40

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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.