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Finding the Fourth Proportional to 369.62, 555.65 and 308.87

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Solution

The fourth proportional to 369.62, 555.65 and 308.87 is: 464.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    369.62 : 555.65 = 308.87 : x
  2. Step 2: Convert to fraction form
    369.62/555.65 = 308.87/x
  3. Step 3: Cross multiply
    369.62x = 555.65 × 308.87
  4. Step 4: Simplify right side
    369.62x = 171,623.62
  5. Step 5: Solve for x
    x = 171,623.62/369.62
  6. Step 6: Final answer
    x = 464.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.