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Finding the Fourth Proportional to 355,079.10, 490,006.54 and 193,934.18

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Solution

The fourth proportional to 355,079.10, 490,006.54 and 193,934.18 is: 267,627.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,079.10 : 490,006.54 = 193,934.18 : x
  2. Step 2: Convert to fraction form
    355,079.10/490,006.54 = 193,934.18/x
  3. Step 3: Cross multiply
    355,079.10x = 490,006.54 × 193,934.18
  4. Step 4: Simplify right side
    355,079.10x = 95,029,016,529.54
  5. Step 5: Solve for x
    x = 95,029,016,529.54/355,079.10
  6. Step 6: Final answer
    x = 267,627.74

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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.