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Finding the Fourth Proportional to 342,146.70, 472,143.33 and 189,176.04

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Solution

The fourth proportional to 342,146.70, 472,143.33 and 189,176.04 is: 261,052.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,146.70 : 472,143.33 = 189,176.04 : x
  2. Step 2: Convert to fraction form
    342,146.70/472,143.33 = 189,176.04/x
  3. Step 3: Cross multiply
    342,146.70x = 472,143.33 × 189,176.04
  4. Step 4: Simplify right side
    342,146.70x = 89,318,205,481.81
  5. Step 5: Solve for x
    x = 89,318,205,481.81/342,146.70
  6. Step 6: Final answer
    x = 261,052.37

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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.