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Finding the Fourth Proportional to 348.36, 479.56 and 265.36

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Solution

The fourth proportional to 348.36, 479.56 and 265.36 is: 365.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.36 : 479.56 = 265.36 : x
  2. Step 2: Convert to fraction form
    348.36/479.56 = 265.36/x
  3. Step 3: Cross multiply
    348.36x = 479.56 × 265.36
  4. Step 4: Simplify right side
    348.36x = 127,256.04
  5. Step 5: Solve for x
    x = 127,256.04/348.36
  6. Step 6: Final answer
    x = 365.30

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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.