Home / 443,140.82-664,571.80-143,551.89

Finding the Fourth Proportional to 443,140.82, 664,571.80 and 143,551.89

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Solution

The fourth proportional to 443,140.82, 664,571.80 and 143,551.89 is: 215,282.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,140.82 : 664,571.80 = 143,551.89 : x
  2. Step 2: Convert to fraction form
    443,140.82/664,571.80 = 143,551.89/x
  3. Step 3: Cross multiply
    443,140.82x = 664,571.80 × 143,551.89
  4. Step 4: Simplify right side
    443,140.82x = 95,400,534,607.84
  5. Step 5: Solve for x
    x = 95,400,534,607.84/443,140.82
  6. Step 6: Final answer
    x = 215,282.66

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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.