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Finding the Fourth Proportional to 164.04, 244.80 and 145.80

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Solution

The fourth proportional to 164.04, 244.80 and 145.80 is: 217.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.04 : 244.80 = 145.80 : x
  2. Step 2: Convert to fraction form
    164.04/244.80 = 145.80/x
  3. Step 3: Cross multiply
    164.04x = 244.80 × 145.80
  4. Step 4: Simplify right side
    164.04x = 35,691.84
  5. Step 5: Solve for x
    x = 35,691.84/164.04
  6. Step 6: Final answer
    x = 217.58

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.