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Finding the Fourth Proportional to 342,194.60, 472,346.16 and 198,999.56

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Solution

The fourth proportional to 342,194.60, 472,346.16 and 198,999.56 is: 274,687.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,194.60 : 472,346.16 = 198,999.56 : x
  2. Step 2: Convert to fraction form
    342,194.60/472,346.16 = 198,999.56/x
  3. Step 3: Cross multiply
    342,194.60x = 472,346.16 × 198,999.56
  4. Step 4: Simplify right side
    342,194.60x = 93,996,678,007.69
  5. Step 5: Solve for x
    x = 93,996,678,007.69/342,194.60
  6. Step 6: Final answer
    x = 274,687.79

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1.5x scale

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.