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Finding the Fourth Proportional to 336.62, 505.35 and 275.87

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Solution

The fourth proportional to 336.62, 505.35 and 275.87 is: 414.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.62 : 505.35 = 275.87 : x
  2. Step 2: Convert to fraction form
    336.62/505.35 = 275.87/x
  3. Step 3: Cross multiply
    336.62x = 505.35 × 275.87
  4. Step 4: Simplify right side
    336.62x = 139,410.90
  5. Step 5: Solve for x
    x = 139,410.90/336.62
  6. Step 6: Final answer
    x = 414.15

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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.