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Finding the Fourth Proportional to 342,474.86, 472,615.76 and 189,519.46

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Solution

The fourth proportional to 342,474.86, 472,615.76 and 189,519.46 is: 261,537.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,474.86 : 472,615.76 = 189,519.46 : x
  2. Step 2: Convert to fraction form
    342,474.86/472,615.76 = 189,519.46/x
  3. Step 3: Cross multiply
    342,474.86x = 472,615.76 × 189,519.46
  4. Step 4: Simplify right side
    342,474.86x = 89,569,883,622.69
  5. Step 5: Solve for x
    x = 89,569,883,622.69/342,474.86
  6. Step 6: Final answer
    x = 261,537.11

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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.