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Finding the Fourth Proportional to 355,155.27, 490,126.05 and 194,025.30

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Solution

The fourth proportional to 355,155.27, 490,126.05 and 194,025.30 is: 267,761.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,155.27 : 490,126.05 = 194,025.30 : x
  2. Step 2: Convert to fraction form
    355,155.27/490,126.05 = 194,025.30/x
  3. Step 3: Cross multiply
    355,155.27x = 490,126.05 × 194,025.30
  4. Step 4: Simplify right side
    355,155.27x = 95,096,853,889.07
  5. Step 5: Solve for x
    x = 95,096,853,889.07/355,155.27
  6. Step 6: Final answer
    x = 267,761.35

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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.