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Finding the Fourth Proportional to 358,342.59, 494,512.85 and 197,197.64

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Solution

The fourth proportional to 358,342.59, 494,512.85 and 197,197.64 is: 272,132.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,342.59 : 494,512.85 = 197,197.64 : x
  2. Step 2: Convert to fraction form
    358,342.59/494,512.85 = 197,197.64/x
  3. Step 3: Cross multiply
    358,342.59x = 494,512.85 × 197,197.64
  4. Step 4: Simplify right side
    358,342.59x = 97,516,764,497.11
  5. Step 5: Solve for x
    x = 97,516,764,497.11/358,342.59
  6. Step 6: Final answer
    x = 272,132.78

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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.