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Finding the Fourth Proportional to 358,135.38, 494,227.17 and 207,234.90

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Solution

The fourth proportional to 358,135.38, 494,227.17 and 207,234.90 is: 285,984.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,135.38 : 494,227.17 = 207,234.90 : x
  2. Step 2: Convert to fraction form
    358,135.38/494,227.17 = 207,234.90/x
  3. Step 3: Cross multiply
    358,135.38x = 494,227.17 × 207,234.90
  4. Step 4: Simplify right side
    358,135.38x = 102,421,118,152.23
  5. Step 5: Solve for x
    x = 102,421,118,152.23/358,135.38
  6. Step 6: Final answer
    x = 285,984.36

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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.