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Finding the Fourth Proportional to 207,952.21, 311,930.75 and 73,019.63

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Solution

The fourth proportional to 207,952.21, 311,930.75 and 73,019.63 is: 109,530.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,952.21 : 311,930.75 = 73,019.63 : x
  2. Step 2: Convert to fraction form
    207,952.21/311,930.75 = 73,019.63/x
  3. Step 3: Cross multiply
    207,952.21x = 311,930.75 × 73,019.63
  4. Step 4: Simplify right side
    207,952.21x = 22,777,066,747.65
  5. Step 5: Solve for x
    x = 22,777,066,747.65/207,952.21
  6. Step 6: Final answer
    x = 109,530.29

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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.