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Finding the Fourth Proportional to 342,161.60, 472,157.75 and 189,201.81

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Solution

The fourth proportional to 342,161.60, 472,157.75 and 189,201.81 is: 261,084.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,161.60 : 472,157.75 = 189,201.81 : x
  2. Step 2: Convert to fraction form
    342,161.60/472,157.75 = 189,201.81/x
  3. Step 3: Cross multiply
    342,161.60x = 472,157.75 × 189,201.81
  4. Step 4: Simplify right side
    342,161.60x = 89,333,099,959.52
  5. Step 5: Solve for x
    x = 89,333,099,959.52/342,161.60
  6. Step 6: Final answer
    x = 261,084.53

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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.