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Finding the Fourth Proportional to 607.94, 838.96 and 331.94

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Solution

The fourth proportional to 607.94, 838.96 and 331.94 is: 458.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.94 : 838.96 = 331.94 : x
  2. Step 2: Convert to fraction form
    607.94/838.96 = 331.94/x
  3. Step 3: Cross multiply
    607.94x = 838.96 × 331.94
  4. Step 4: Simplify right side
    607.94x = 278,482.72
  5. Step 5: Solve for x
    x = 278,482.72/607.94
  6. Step 6: Final answer
    x = 458.08

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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.