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Finding the Fourth Proportional to 500,510.22, 750,800.36 and 200,990.80

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Solution

The fourth proportional to 500,510.22, 750,800.36 and 200,990.80 is: 301,500.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,510.22 : 750,800.36 = 200,990.80 : x
  2. Step 2: Convert to fraction form
    500,510.22/750,800.36 = 200,990.80/x
  3. Step 3: Cross multiply
    500,510.22x = 750,800.36 × 200,990.80
  4. Step 4: Simplify right side
    500,510.22x = 150,903,964,996.69
  5. Step 5: Solve for x
    x = 150,903,964,996.69/500,510.22
  6. Step 6: Final answer
    x = 301,500.27

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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.