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Finding the Fourth Proportional to 321,887.38, 444,002.49 and 207,314.50

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Solution

The fourth proportional to 321,887.38, 444,002.49 and 207,314.50 is: 285,963.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,887.38 : 444,002.49 = 207,314.50 : x
  2. Step 2: Convert to fraction form
    321,887.38/444,002.49 = 207,314.50/x
  3. Step 3: Cross multiply
    321,887.38x = 444,002.49 × 207,314.50
  4. Step 4: Simplify right side
    321,887.38x = 92,048,154,213.11
  5. Step 5: Solve for x
    x = 92,048,154,213.11/321,887.38
  6. Step 6: Final answer
    x = 285,963.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.