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Finding the Fourth Proportional to 440,539.64, 660,857.34 and 140,949.80

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Solution

The fourth proportional to 440,539.64, 660,857.34 and 140,949.80 is: 211,440.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,539.64 : 660,857.34 = 140,949.80 : x
  2. Step 2: Convert to fraction form
    440,539.64/660,857.34 = 140,949.80/x
  3. Step 3: Cross multiply
    440,539.64x = 660,857.34 × 140,949.80
  4. Step 4: Simplify right side
    440,539.64x = 93,147,709,901.53
  5. Step 5: Solve for x
    x = 93,147,709,901.53/440,539.64
  6. Step 6: Final answer
    x = 211,440.02

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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.