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Finding the Fourth Proportional to 535.12, 802.44 and 193.12

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Solution

The fourth proportional to 535.12, 802.44 and 193.12 is: 289.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    535.12 : 802.44 = 193.12 : x
  2. Step 2: Convert to fraction form
    535.12/802.44 = 193.12/x
  3. Step 3: Cross multiply
    535.12x = 802.44 × 193.12
  4. Step 4: Simplify right side
    535.12x = 154,967.21
  5. Step 5: Solve for x
    x = 154,967.21/535.12
  6. Step 6: Final answer
    x = 289.59

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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.