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Finding the Fourth Proportional to 358.36, 535.32 and 340.60

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Solution

The fourth proportional to 358.36, 535.32 and 340.60 is: 508.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.36 : 535.32 = 340.60 : x
  2. Step 2: Convert to fraction form
    358.36/535.32 = 340.60/x
  3. Step 3: Cross multiply
    358.36x = 535.32 × 340.60
  4. Step 4: Simplify right side
    358.36x = 182,329.99
  5. Step 5: Solve for x
    x = 182,329.99/358.36
  6. Step 6: Final answer
    x = 508.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.