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Finding the Fourth Proportional to 440,455.98, 660,675 and 140,936.52

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Solution

The fourth proportional to 440,455.98, 660,675 and 140,936.52 is: 211,401.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,455.98 : 660,675 = 140,936.52 : x
  2. Step 2: Convert to fraction form
    440,455.98/660,675 = 140,936.52/x
  3. Step 3: Cross multiply
    440,455.98x = 660,675 × 140,936.52
  4. Step 4: Simplify right side
    440,455.98x = 93,113,235,351
  5. Step 5: Solve for x
    x = 93,113,235,351/440,455.98
  6. Step 6: Final answer
    x = 211,401.91

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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.