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Finding the Fourth Proportional to 336.15, 465.77 and 328.59

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Solution

The fourth proportional to 336.15, 465.77 and 328.59 is: 455.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.15 : 465.77 = 328.59 : x
  2. Step 2: Convert to fraction form
    336.15/465.77 = 328.59/x
  3. Step 3: Cross multiply
    336.15x = 465.77 × 328.59
  4. Step 4: Simplify right side
    336.15x = 153,045.72
  5. Step 5: Solve for x
    x = 153,045.72/336.15
  6. Step 6: Final answer
    x = 455.29

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.