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Finding the Fourth Proportional to 210.04, 290.14 and 144.42

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Solution

The fourth proportional to 210.04, 290.14 and 144.42 is: 199.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    210.04 : 290.14 = 144.42 : x
  2. Step 2: Convert to fraction form
    210.04/290.14 = 144.42/x
  3. Step 3: Cross multiply
    210.04x = 290.14 × 144.42
  4. Step 4: Simplify right side
    210.04x = 41,902.02
  5. Step 5: Solve for x
    x = 41,902.02/210.04
  6. Step 6: Final answer
    x = 199.50

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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.