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Finding the Fourth Proportional to 342,339.03, 472,391.28 and 189,352.89

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Solution

The fourth proportional to 342,339.03, 472,391.28 and 189,352.89 is: 261,286.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,339.03 : 472,391.28 = 189,352.89 : x
  2. Step 2: Convert to fraction form
    342,339.03/472,391.28 = 189,352.89/x
  3. Step 3: Cross multiply
    342,339.03x = 472,391.28 × 189,352.89
  4. Step 4: Simplify right side
    342,339.03x = 89,448,654,078.80
  5. Step 5: Solve for x
    x = 89,448,654,078.80/342,339.03
  6. Step 6: Final answer
    x = 261,286.75

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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.