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Finding the Fourth Proportional to 655,210.62, 982,815.22 and 205,970.75

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Solution

The fourth proportional to 655,210.62, 982,815.22 and 205,970.75 is: 308,955.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,210.62 : 982,815.22 = 205,970.75 : x
  2. Step 2: Convert to fraction form
    655,210.62/982,815.22 = 205,970.75/x
  3. Step 3: Cross multiply
    655,210.62x = 982,815.22 × 205,970.75
  4. Step 4: Simplify right side
    655,210.62x = 202,431,187,003.76
  5. Step 5: Solve for x
    x = 202,431,187,003.76/655,210.62
  6. Step 6: Final answer
    x = 308,955.90

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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.