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Finding the Fourth Proportional to 230,822.70, 346,234.05 and 217,920.30

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Solution

The fourth proportional to 230,822.70, 346,234.05 and 217,920.30 is: 326,880.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,822.70 : 346,234.05 = 217,920.30 : x
  2. Step 2: Convert to fraction form
    230,822.70/346,234.05 = 217,920.30/x
  3. Step 3: Cross multiply
    230,822.70x = 346,234.05 × 217,920.30
  4. Step 4: Simplify right side
    230,822.70x = 75,451,428,046.22
  5. Step 5: Solve for x
    x = 75,451,428,046.22/230,822.70
  6. Step 6: Final answer
    x = 326,880.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.