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Finding the Fourth Proportional to 192.84, 290.08 and 164.50

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Solution

The fourth proportional to 192.84, 290.08 and 164.50 is: 247.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.84 : 290.08 = 164.50 : x
  2. Step 2: Convert to fraction form
    192.84/290.08 = 164.50/x
  3. Step 3: Cross multiply
    192.84x = 290.08 × 164.50
  4. Step 4: Simplify right side
    192.84x = 47,718.16
  5. Step 5: Solve for x
    x = 47,718.16/192.84
  6. Step 6: Final answer
    x = 247.45

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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.