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Finding the Fourth Proportional to 355.68, 529.74 and 336.96

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Solution

The fourth proportional to 355.68, 529.74 and 336.96 is: 501.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.68 : 529.74 = 336.96 : x
  2. Step 2: Convert to fraction form
    355.68/529.74 = 336.96/x
  3. Step 3: Cross multiply
    355.68x = 529.74 × 336.96
  4. Step 4: Simplify right side
    355.68x = 178,501.19
  5. Step 5: Solve for x
    x = 178,501.19/355.68
  6. Step 6: Final answer
    x = 501.86

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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.