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Finding the Fourth Proportional to 352.58, 526.26 and 323.72

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Solution

The fourth proportional to 352.58, 526.26 and 323.72 is: 483.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.58 : 526.26 = 323.72 : x
  2. Step 2: Convert to fraction form
    352.58/526.26 = 323.72/x
  3. Step 3: Cross multiply
    352.58x = 526.26 × 323.72
  4. Step 4: Simplify right side
    352.58x = 170,360.89
  5. Step 5: Solve for x
    x = 170,360.89/352.58
  6. Step 6: Final answer
    x = 483.18

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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.