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Finding the Fourth Proportional to 649,900.49, 974,760.55 and 200,636.15

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Solution

The fourth proportional to 649,900.49, 974,760.55 and 200,636.15 is: 300,926.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,900.49 : 974,760.55 = 200,636.15 : x
  2. Step 2: Convert to fraction form
    649,900.49/974,760.55 = 200,636.15/x
  3. Step 3: Cross multiply
    649,900.49x = 974,760.55 × 200,636.15
  4. Step 4: Simplify right side
    649,900.49x = 195,572,198,548.49
  5. Step 5: Solve for x
    x = 195,572,198,548.49/649,900.49
  6. Step 6: Final answer
    x = 300,926.38

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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.