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Finding the Fourth Proportional to 354,889.34, 489,754.73 and 193,751.18

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Solution

The fourth proportional to 354,889.34, 489,754.73 and 193,751.18 is: 267,380.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,889.34 : 489,754.73 = 193,751.18 : x
  2. Step 2: Convert to fraction form
    354,889.34/489,754.73 = 193,751.18/x
  3. Step 3: Cross multiply
    354,889.34x = 489,754.73 × 193,751.18
  4. Step 4: Simplify right side
    354,889.34x = 94,890,557,103.71
  5. Step 5: Solve for x
    x = 94,890,557,103.71/354,889.34
  6. Step 6: Final answer
    x = 267,380.69

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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.