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Finding the Fourth Proportional to 440,500.96, 660,799.86 and 140,911.12

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Solution

The fourth proportional to 440,500.96, 660,799.86 and 140,911.12 is: 211,382.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,500.96 : 660,799.86 = 140,911.12 : x
  2. Step 2: Convert to fraction form
    440,500.96/660,799.86 = 140,911.12/x
  3. Step 3: Cross multiply
    440,500.96x = 660,799.86 × 140,911.12
  4. Step 4: Simplify right side
    440,500.96x = 93,114,048,368.44
  5. Step 5: Solve for x
    x = 93,114,048,368.44/440,500.96
  6. Step 6: Final answer
    x = 211,382.17

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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.