Home / 210.24-290.14-122.94

Finding the Fourth Proportional to 210.24, 290.14 and 122.94

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Solution

The fourth proportional to 210.24, 290.14 and 122.94 is: 169.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    210.24 : 290.14 = 122.94 : x
  2. Step 2: Convert to fraction form
    210.24/290.14 = 122.94/x
  3. Step 3: Cross multiply
    210.24x = 290.14 × 122.94
  4. Step 4: Simplify right side
    210.24x = 35,669.50
  5. Step 5: Solve for x
    x = 35,669.50/210.24
  6. Step 6: Final answer
    x = 169.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.