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Finding the Fourth Proportional to 358,135.92, 494,138.16 and 230,658.12

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Solution

The fourth proportional to 358,135.92, 494,138.16 and 230,658.12 is: 318,250.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,135.92 : 494,138.16 = 230,658.12 : x
  2. Step 2: Convert to fraction form
    358,135.92/494,138.16 = 230,658.12/x
  3. Step 3: Cross multiply
    358,135.92x = 494,138.16 × 230,658.12
  4. Step 4: Simplify right side
    358,135.92x = 113,976,979,005.86
  5. Step 5: Solve for x
    x = 113,976,979,005.86/358,135.92
  6. Step 6: Final answer
    x = 318,250.62

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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.