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Finding the Fourth Proportional to 245.62, 366.53 and 218.35

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Solution

The fourth proportional to 245.62, 366.53 and 218.35 is: 325.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    245.62 : 366.53 = 218.35 : x
  2. Step 2: Convert to fraction form
    245.62/366.53 = 218.35/x
  3. Step 3: Cross multiply
    245.62x = 366.53 × 218.35
  4. Step 4: Simplify right side
    245.62x = 80,031.83
  5. Step 5: Solve for x
    x = 80,031.83/245.62
  6. Step 6: Final answer
    x = 325.84

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.