Home / 438,782.29-658,198.06-123,214.60

Finding the Fourth Proportional to 438,782.29, 658,198.06 and 123,214.60

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Solution

The fourth proportional to 438,782.29, 658,198.06 and 123,214.60 is: 184,828.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,782.29 : 658,198.06 = 123,214.60 : x
  2. Step 2: Convert to fraction form
    438,782.29/658,198.06 = 123,214.60/x
  3. Step 3: Cross multiply
    438,782.29x = 658,198.06 × 123,214.60
  4. Step 4: Simplify right side
    438,782.29x = 81,099,607,392.69
  5. Step 5: Solve for x
    x = 81,099,607,392.69/438,782.29
  6. Step 6: Final answer
    x = 184,828.81

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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.