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Finding the Fourth Proportional to 438,791.53, 658,212.81 and 123,273.04

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Solution

The fourth proportional to 438,791.53, 658,212.81 and 123,273.04 is: 184,916.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,791.53 : 658,212.81 = 123,273.04 : x
  2. Step 2: Convert to fraction form
    438,791.53/658,212.81 = 123,273.04/x
  3. Step 3: Cross multiply
    438,791.53x = 658,212.81 × 123,273.04
  4. Step 4: Simplify right side
    438,791.53x = 81,139,894,055.64
  5. Step 5: Solve for x
    x = 81,139,894,055.64/438,791.53
  6. Step 6: Final answer
    x = 184,916.73

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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.