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Finding the Fourth Proportional to 354,874.40, 489,727.92 and 193,733.04

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Solution

The fourth proportional to 354,874.40, 489,727.92 and 193,733.04 is: 267,352.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,874.40 : 489,727.92 = 193,733.04 : x
  2. Step 2: Convert to fraction form
    354,874.40/489,727.92 = 193,733.04/x
  3. Step 3: Cross multiply
    354,874.40x = 489,727.92 × 193,733.04
  4. Step 4: Simplify right side
    354,874.40x = 94,876,478,714.48
  5. Step 5: Solve for x
    x = 94,876,478,714.48/354,874.40
  6. Step 6: Final answer
    x = 267,352.28

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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.