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Finding the Fourth Proportional to 336.66, 464.23 and 290.19

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Solution

The fourth proportional to 336.66, 464.23 and 290.19 is: 400.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.66 : 464.23 = 290.19 : x
  2. Step 2: Convert to fraction form
    336.66/464.23 = 290.19/x
  3. Step 3: Cross multiply
    336.66x = 464.23 × 290.19
  4. Step 4: Simplify right side
    336.66x = 134,714.90
  5. Step 5: Solve for x
    x = 134,714.90/336.66
  6. Step 6: Final answer
    x = 400.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.