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Finding the Fourth Proportional to 342,581.96, 472,751.03 and 189,620.45

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Solution

The fourth proportional to 342,581.96, 472,751.03 and 189,620.45 is: 261,669.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,581.96 : 472,751.03 = 189,620.45 : x
  2. Step 2: Convert to fraction form
    342,581.96/472,751.03 = 189,620.45/x
  3. Step 3: Cross multiply
    342,581.96x = 472,751.03 × 189,620.45
  4. Step 4: Simplify right side
    342,581.96x = 89,643,261,156.86
  5. Step 5: Solve for x
    x = 89,643,261,156.86/342,581.96
  6. Step 6: Final answer
    x = 261,669.53

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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.