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Finding the Fourth Proportional to 336.77, 505.16 and 93.30

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Solution

The fourth proportional to 336.77, 505.16 and 93.30 is: 139.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.77 : 505.16 = 93.30 : x
  2. Step 2: Convert to fraction form
    336.77/505.16 = 93.30/x
  3. Step 3: Cross multiply
    336.77x = 505.16 × 93.30
  4. Step 4: Simplify right side
    336.77x = 47,131.43
  5. Step 5: Solve for x
    x = 47,131.43/336.77
  6. Step 6: Final answer
    x = 139.95

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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.