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Finding the Fourth Proportional to 354,922.02, 489,785.74 and 201,956.76

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Solution

The fourth proportional to 354,922.02, 489,785.74 and 201,956.76 is: 278,696.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,922.02 : 489,785.74 = 201,956.76 : x
  2. Step 2: Convert to fraction form
    354,922.02/489,785.74 = 201,956.76/x
  3. Step 3: Cross multiply
    354,922.02x = 489,785.74 × 201,956.76
  4. Step 4: Simplify right side
    354,922.02x = 98,915,540,639.71
  5. Step 5: Solve for x
    x = 98,915,540,639.71/354,922.02
  6. Step 6: Final answer
    x = 278,696.54

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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.