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Finding the Fourth Proportional to 336.80, 505.14 and 93.34

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Solution

The fourth proportional to 336.80, 505.14 and 93.34 is: 139.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.80 : 505.14 = 93.34 : x
  2. Step 2: Convert to fraction form
    336.80/505.14 = 93.34/x
  3. Step 3: Cross multiply
    336.80x = 505.14 × 93.34
  4. Step 4: Simplify right side
    336.80x = 47,149.77
  5. Step 5: Solve for x
    x = 47,149.77/336.80
  6. Step 6: Final answer
    x = 139.99

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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.