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Finding the Fourth Proportional to 355.44, 529.35 and 348.60

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Solution

The fourth proportional to 355.44, 529.35 and 348.60 is: 519.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.44 : 529.35 = 348.60 : x
  2. Step 2: Convert to fraction form
    355.44/529.35 = 348.60/x
  3. Step 3: Cross multiply
    355.44x = 529.35 × 348.60
  4. Step 4: Simplify right side
    355.44x = 184,531.41
  5. Step 5: Solve for x
    x = 184,531.41/355.44
  6. Step 6: Final answer
    x = 519.16

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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.