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Finding the Fourth Proportional to 368.12, 505.30 and 335.18

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Solution

The fourth proportional to 368.12, 505.30 and 335.18 is: 460.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.12 : 505.30 = 335.18 : x
  2. Step 2: Convert to fraction form
    368.12/505.30 = 335.18/x
  3. Step 3: Cross multiply
    368.12x = 505.30 × 335.18
  4. Step 4: Simplify right side
    368.12x = 169,366.45
  5. Step 5: Solve for x
    x = 169,366.45/368.12
  6. Step 6: Final answer
    x = 460.08

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.