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Finding the Fourth Proportional to 580.71, 870.97 and 164.20

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Solution

The fourth proportional to 580.71, 870.97 and 164.20 is: 246.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    580.71 : 870.97 = 164.20 : x
  2. Step 2: Convert to fraction form
    580.71/870.97 = 164.20/x
  3. Step 3: Cross multiply
    580.71x = 870.97 × 164.20
  4. Step 4: Simplify right side
    580.71x = 143,009.65
  5. Step 5: Solve for x
    x = 143,009.65/580.71
  6. Step 6: Final answer
    x = 246.27

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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.