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Finding the Fourth Proportional to 431.15, 594.98 and 234.67

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Solution

The fourth proportional to 431.15, 594.98 and 234.67 is: 323.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    431.15 : 594.98 = 234.67 : x
  2. Step 2: Convert to fraction form
    431.15/594.98 = 234.67/x
  3. Step 3: Cross multiply
    431.15x = 594.98 × 234.67
  4. Step 4: Simplify right side
    431.15x = 139,623.96
  5. Step 5: Solve for x
    x = 139,623.96/431.15
  6. Step 6: Final answer
    x = 323.84

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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.