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Finding the Fourth Proportional to 434.58, 650.78 and 336.92

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Solution

The fourth proportional to 434.58, 650.78 and 336.92 is: 504.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    434.58 : 650.78 = 336.92 : x
  2. Step 2: Convert to fraction form
    434.58/650.78 = 336.92/x
  3. Step 3: Cross multiply
    434.58x = 650.78 × 336.92
  4. Step 4: Simplify right side
    434.58x = 219,259.11
  5. Step 5: Solve for x
    x = 219,259.11/434.58
  6. Step 6: Final answer
    x = 504.53

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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.