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Finding the Fourth Proportional to 355.83, 531.33 and 304.39

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Solution

The fourth proportional to 355.83, 531.33 and 304.39 is: 454.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.83 : 531.33 = 304.39 : x
  2. Step 2: Convert to fraction form
    355.83/531.33 = 304.39/x
  3. Step 3: Cross multiply
    355.83x = 531.33 × 304.39
  4. Step 4: Simplify right side
    355.83x = 161,731.06
  5. Step 5: Solve for x
    x = 161,731.06/355.83
  6. Step 6: Final answer
    x = 454.52

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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.