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Finding the Fourth Proportional to 342,495.67, 472,632.41 and 189,540.33

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Solution

The fourth proportional to 342,495.67, 472,632.41 and 189,540.33 is: 261,559.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,495.67 : 472,632.41 = 189,540.33 : x
  2. Step 2: Convert to fraction form
    342,495.67/472,632.41 = 189,540.33/x
  3. Step 3: Cross multiply
    342,495.67x = 472,632.41 × 189,540.33
  4. Step 4: Simplify right side
    342,495.67x = 89,582,902,960.10
  5. Step 5: Solve for x
    x = 89,582,902,960.10/342,495.67
  6. Step 6: Final answer
    x = 261,559.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.