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Finding the Fourth Proportional to 612.23, 844.85 and 332.45

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Solution

The fourth proportional to 612.23, 844.85 and 332.45 is: 458.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    612.23 : 844.85 = 332.45 : x
  2. Step 2: Convert to fraction form
    612.23/844.85 = 332.45/x
  3. Step 3: Cross multiply
    612.23x = 844.85 × 332.45
  4. Step 4: Simplify right side
    612.23x = 280,864.50
  5. Step 5: Solve for x
    x = 280,864.50/612.23
  6. Step 6: Final answer
    x = 458.76

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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.