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Finding the Fourth Proportional to 366.47, 505.59 and 219.16

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Solution

The fourth proportional to 366.47, 505.59 and 219.16 is: 302.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.47 : 505.59 = 219.16 : x
  2. Step 2: Convert to fraction form
    366.47/505.59 = 219.16/x
  3. Step 3: Cross multiply
    366.47x = 505.59 × 219.16
  4. Step 4: Simplify right side
    366.47x = 110,803.30
  5. Step 5: Solve for x
    x = 110,803.30/366.47
  6. Step 6: Final answer
    x = 302.35

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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.