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Finding the Fourth Proportional to 355,162.20, 490,134.36 and 194,019.92

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Solution

The fourth proportional to 355,162.20, 490,134.36 and 194,019.92 is: 267,753.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,162.20 : 490,134.36 = 194,019.92 : x
  2. Step 2: Convert to fraction form
    355,162.20/490,134.36 = 194,019.92/x
  3. Step 3: Cross multiply
    355,162.20x = 490,134.36 × 194,019.92
  4. Step 4: Simplify right side
    355,162.20x = 95,095,829,316.45
  5. Step 5: Solve for x
    x = 95,095,829,316.45/355,162.20
  6. Step 6: Final answer
    x = 267,753.24

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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.