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Finding the Fourth Proportional to 336.99, 505.04 and 288.59

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Solution

The fourth proportional to 336.99, 505.04 and 288.59 is: 432.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.99 : 505.04 = 288.59 : x
  2. Step 2: Convert to fraction form
    336.99/505.04 = 288.59/x
  3. Step 3: Cross multiply
    336.99x = 505.04 × 288.59
  4. Step 4: Simplify right side
    336.99x = 145,745.53
  5. Step 5: Solve for x
    x = 145,745.53/336.99
  6. Step 6: Final answer
    x = 432.49

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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.