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Finding the Fourth Proportional to 440,069.40, 660,249.90 and 140,596.20

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Solution

The fourth proportional to 440,069.40, 660,249.90 and 140,596.20 is: 210,940.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,069.40 : 660,249.90 = 140,596.20 : x
  2. Step 2: Convert to fraction form
    440,069.40/660,249.90 = 140,596.20/x
  3. Step 3: Cross multiply
    440,069.40x = 660,249.90 × 140,596.20
  4. Step 4: Simplify right side
    440,069.40x = 92,828,626,990.38
  5. Step 5: Solve for x
    x = 92,828,626,990.38/440,069.40
  6. Step 6: Final answer
    x = 210,940.88

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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.