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Finding the Fourth Proportional to 608.60, 839.86 and 332.60

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Solution

The fourth proportional to 608.60, 839.86 and 332.60 is: 458.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.60 : 839.86 = 332.60 : x
  2. Step 2: Convert to fraction form
    608.60/839.86 = 332.60/x
  3. Step 3: Cross multiply
    608.60x = 839.86 × 332.60
  4. Step 4: Simplify right side
    608.60x = 279,337.44
  5. Step 5: Solve for x
    x = 279,337.44/608.60
  6. Step 6: Final answer
    x = 458.98

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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.