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Finding the Fourth Proportional to 664,595, 996,892.50 and 197,651

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Solution

The fourth proportional to 664,595, 996,892.50 and 197,651 is: 296,476.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,595 : 996,892.50 = 197,651 : x
  2. Step 2: Convert to fraction form
    664,595/996,892.50 = 197,651/x
  3. Step 3: Cross multiply
    664,595x = 996,892.50 × 197,651
  4. Step 4: Simplify right side
    664,595x = 197,036,799,517.50
  5. Step 5: Solve for x
    x = 197,036,799,517.50/664,595
  6. Step 6: Final answer
    x = 296,476.50

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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.