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Finding the Fourth Proportional to 352.77, 526.16 and 330.72

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Solution

The fourth proportional to 352.77, 526.16 and 330.72 is: 493.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.77 : 526.16 = 330.72 : x
  2. Step 2: Convert to fraction form
    352.77/526.16 = 330.72/x
  3. Step 3: Cross multiply
    352.77x = 526.16 × 330.72
  4. Step 4: Simplify right side
    352.77x = 174,009.98
  5. Step 5: Solve for x
    x = 174,009.98/352.77
  6. Step 6: Final answer
    x = 493.27

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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.