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Finding the Fourth Proportional to 353.99, 484.16 and 348.32

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Solution

The fourth proportional to 353.99, 484.16 and 348.32 is: 476.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    353.99 : 484.16 = 348.32 : x
  2. Step 2: Convert to fraction form
    353.99/484.16 = 348.32/x
  3. Step 3: Cross multiply
    353.99x = 484.16 × 348.32
  4. Step 4: Simplify right side
    353.99x = 168,641.06
  5. Step 5: Solve for x
    x = 168,641.06/353.99
  6. Step 6: Final answer
    x = 476.41

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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.