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Finding the Fourth Proportional to 164.86, 246.99 and 146.98

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Solution

The fourth proportional to 164.86, 246.99 and 146.98 is: 220.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.86 : 246.99 = 146.98 : x
  2. Step 2: Convert to fraction form
    164.86/246.99 = 146.98/x
  3. Step 3: Cross multiply
    164.86x = 246.99 × 146.98
  4. Step 4: Simplify right side
    164.86x = 36,302.59
  5. Step 5: Solve for x
    x = 36,302.59/164.86
  6. Step 6: Final answer
    x = 220.21

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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.