Home / 207,553.40-311,330.10-187,214.30

Finding the Fourth Proportional to 207,553.40, 311,330.10 and 187,214.30

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Solution

The fourth proportional to 207,553.40, 311,330.10 and 187,214.30 is: 280,821.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,553.40 : 311,330.10 = 187,214.30 : x
  2. Step 2: Convert to fraction form
    207,553.40/311,330.10 = 187,214.30/x
  3. Step 3: Cross multiply
    207,553.40x = 311,330.10 × 187,214.30
  4. Step 4: Simplify right side
    207,553.40x = 58,285,446,740.43
  5. Step 5: Solve for x
    x = 58,285,446,740.43/207,553.40
  6. Step 6: Final answer
    x = 280,821.45

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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.