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Finding the Fourth Proportional to 655,336.88, 983,136.48 and 206,170.72

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Solution

The fourth proportional to 655,336.88, 983,136.48 and 206,170.72 is: 309,297.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,336.88 : 983,136.48 = 206,170.72 : x
  2. Step 2: Convert to fraction form
    655,336.88/983,136.48 = 206,170.72/x
  3. Step 3: Cross multiply
    655,336.88x = 983,136.48 × 206,170.72
  4. Step 4: Simplify right side
    655,336.88x = 202,693,955,939.87
  5. Step 5: Solve for x
    x = 202,693,955,939.87/655,336.88
  6. Step 6: Final answer
    x = 309,297.34

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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.