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Finding the Fourth Proportional to 435.69, 653.74 and 192.18

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Solution

The fourth proportional to 435.69, 653.74 and 192.18 is: 288.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.69 : 653.74 = 192.18 : x
  2. Step 2: Convert to fraction form
    435.69/653.74 = 192.18/x
  3. Step 3: Cross multiply
    435.69x = 653.74 × 192.18
  4. Step 4: Simplify right side
    435.69x = 125,635.75
  5. Step 5: Solve for x
    x = 125,635.75/435.69
  6. Step 6: Final answer
    x = 288.36

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