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Finding the Fourth Proportional to 443,338.93, 665,101.91 and 143,796.25

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Solution

The fourth proportional to 443,338.93, 665,101.91 and 143,796.25 is: 215,724.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,338.93 : 665,101.91 = 143,796.25 : x
  2. Step 2: Convert to fraction form
    443,338.93/665,101.91 = 143,796.25/x
  3. Step 3: Cross multiply
    443,338.93x = 665,101.91 × 143,796.25
  4. Step 4: Simplify right side
    443,338.93x = 95,639,159,222.57
  5. Step 5: Solve for x
    x = 95,639,159,222.57/443,338.93
  6. Step 6: Final answer
    x = 215,724.70

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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.