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Finding the Fourth Proportional to 440,450.55, 660,719.43 and 140,855.85

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Solution

The fourth proportional to 440,450.55, 660,719.43 and 140,855.85 is: 211,297.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,450.55 : 660,719.43 = 140,855.85 : x
  2. Step 2: Convert to fraction form
    440,450.55/660,719.43 = 140,855.85/x
  3. Step 3: Cross multiply
    440,450.55x = 660,719.43 × 140,855.85
  4. Step 4: Simplify right side
    440,450.55x = 93,066,196,924.17
  5. Step 5: Solve for x
    x = 93,066,196,924.17/440,450.55
  6. Step 6: Final answer
    x = 211,297.72

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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.