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Finding the Fourth Proportional to 164.32, 245.36 and 146.08

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Solution

The fourth proportional to 164.32, 245.36 and 146.08 is: 218.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.32 : 245.36 = 146.08 : x
  2. Step 2: Convert to fraction form
    164.32/245.36 = 146.08/x
  3. Step 3: Cross multiply
    164.32x = 245.36 × 146.08
  4. Step 4: Simplify right side
    164.32x = 35,842.19
  5. Step 5: Solve for x
    x = 35,842.19/164.32
  6. Step 6: Final answer
    x = 218.12

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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.