Home / 354,512.04-489,407.22-273,758.28

Finding the Fourth Proportional to 354,512.04, 489,407.22 and 273,758.28

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Solution

The fourth proportional to 354,512.04, 489,407.22 and 273,758.28 is: 377,925.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,512.04 : 489,407.22 = 273,758.28 : x
  2. Step 2: Convert to fraction form
    354,512.04/489,407.22 = 273,758.28/x
  3. Step 3: Cross multiply
    354,512.04x = 489,407.22 × 273,758.28
  4. Step 4: Simplify right side
    354,512.04x = 133,979,278,766.78
  5. Step 5: Solve for x
    x = 133,979,278,766.78/354,512.04
  6. Step 6: Final answer
    x = 377,925.89

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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.