Home / 443,311.09-665,060.03-143,768.31

Finding the Fourth Proportional to 443,311.09, 665,060.03 and 143,768.31

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Solution

The fourth proportional to 443,311.09, 665,060.03 and 143,768.31 is: 215,682.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,311.09 : 665,060.03 = 143,768.31 : x
  2. Step 2: Convert to fraction form
    443,311.09/665,060.03 = 143,768.31/x
  3. Step 3: Cross multiply
    443,311.09x = 665,060.03 × 143,768.31
  4. Step 4: Simplify right side
    443,311.09x = 95,614,557,606.30
  5. Step 5: Solve for x
    x = 95,614,557,606.30/443,311.09
  6. Step 6: Final answer
    x = 215,682.76

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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.