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Finding the Fourth Proportional to 210.02, 314.62 and 164.07

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Solution

The fourth proportional to 210.02, 314.62 and 164.07 is: 245.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    210.02 : 314.62 = 164.07 : x
  2. Step 2: Convert to fraction form
    210.02/314.62 = 164.07/x
  3. Step 3: Cross multiply
    210.02x = 314.62 × 164.07
  4. Step 4: Simplify right side
    210.02x = 51,619.29
  5. Step 5: Solve for x
    x = 51,619.29/210.02
  6. Step 6: Final answer
    x = 245.79

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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.