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Finding the Fourth Proportional to 655,308.88, 982,962.48 and 206,069.20

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Solution

The fourth proportional to 655,308.88, 982,962.48 and 206,069.20 is: 309,103.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,308.88 : 982,962.48 = 206,069.20 : x
  2. Step 2: Convert to fraction form
    655,308.88/982,962.48 = 206,069.20/x
  3. Step 3: Cross multiply
    655,308.88x = 982,962.48 × 206,069.20
  4. Step 4: Simplify right side
    655,308.88x = 202,558,291,883.62
  5. Step 5: Solve for x
    x = 202,558,291,883.62/655,308.88
  6. Step 6: Final answer
    x = 309,103.54

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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.