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Finding the Fourth Proportional to 342,493.04, 472,628.79 and 189,537.71

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Solution

The fourth proportional to 342,493.04, 472,628.79 and 189,537.71 is: 261,555.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,493.04 : 472,628.79 = 189,537.71 : x
  2. Step 2: Convert to fraction form
    342,493.04/472,628.79 = 189,537.71/x
  3. Step 3: Cross multiply
    342,493.04x = 472,628.79 × 189,537.71
  4. Step 4: Simplify right side
    342,493.04x = 89,580,976,173.53
  5. Step 5: Solve for x
    x = 89,580,976,173.53/342,493.04
  6. Step 6: Final answer
    x = 261,555.61

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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.