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Finding the Fourth Proportional to 297,000.80, 445,501.20 and 279,504.80

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Solution

The fourth proportional to 297,000.80, 445,501.20 and 279,504.80 is: 419,257.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,000.80 : 445,501.20 = 279,504.80 : x
  2. Step 2: Convert to fraction form
    297,000.80/445,501.20 = 279,504.80/x
  3. Step 3: Cross multiply
    297,000.80x = 445,501.20 × 279,504.80
  4. Step 4: Simplify right side
    297,000.80x = 124,519,723,805.76
  5. Step 5: Solve for x
    x = 124,519,723,805.76/297,000.80
  6. Step 6: Final answer
    x = 419,257.20

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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.