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Finding the Fourth Proportional to 342,746.12, 472,843.09 and 206,702.71

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Solution

The fourth proportional to 342,746.12, 472,843.09 and 206,702.71 is: 285,161.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,746.12 : 472,843.09 = 206,702.71 : x
  2. Step 2: Convert to fraction form
    342,746.12/472,843.09 = 206,702.71/x
  3. Step 3: Cross multiply
    342,746.12x = 472,843.09 × 206,702.71
  4. Step 4: Simplify right side
    342,746.12x = 97,737,948,107.77
  5. Step 5: Solve for x
    x = 97,737,948,107.77/342,746.12
  6. Step 6: Final answer
    x = 285,161.36

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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.