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Finding the Fourth Proportional to 439,362.81, 659,044.26 and 158,814.45

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Solution

The fourth proportional to 439,362.81, 659,044.26 and 158,814.45 is: 238,221.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,362.81 : 659,044.26 = 158,814.45 : x
  2. Step 2: Convert to fraction form
    439,362.81/659,044.26 = 158,814.45/x
  3. Step 3: Cross multiply
    439,362.81x = 659,044.26 × 158,814.45
  4. Step 4: Simplify right side
    439,362.81x = 104,665,751,677.56
  5. Step 5: Solve for x
    x = 104,665,751,677.56/439,362.81
  6. Step 6: Final answer
    x = 238,221.69

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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.