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Finding the Fourth Proportional to 341.05, 511.59 and 135.64

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Solution

The fourth proportional to 341.05, 511.59 and 135.64 is: 203.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.05 : 511.59 = 135.64 : x
  2. Step 2: Convert to fraction form
    341.05/511.59 = 135.64/x
  3. Step 3: Cross multiply
    341.05x = 511.59 × 135.64
  4. Step 4: Simplify right side
    341.05x = 69,392.07
  5. Step 5: Solve for x
    x = 69,392.07/341.05
  6. Step 6: Final answer
    x = 203.47

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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.