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Finding the Fourth Proportional to 536.19, 802.60 and 351.21

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Solution

The fourth proportional to 536.19, 802.60 and 351.21 is: 525.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.19 : 802.60 = 351.21 : x
  2. Step 2: Convert to fraction form
    536.19/802.60 = 351.21/x
  3. Step 3: Cross multiply
    536.19x = 802.60 × 351.21
  4. Step 4: Simplify right side
    536.19x = 281,881.15
  5. Step 5: Solve for x
    x = 281,881.15/536.19
  6. Step 6: Final answer
    x = 525.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.