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Finding the Fourth Proportional to 407.06, 610.29 and 190.52

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Solution

The fourth proportional to 407.06, 610.29 and 190.52 is: 285.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    407.06 : 610.29 = 190.52 : x
  2. Step 2: Convert to fraction form
    407.06/610.29 = 190.52/x
  3. Step 3: Cross multiply
    407.06x = 610.29 × 190.52
  4. Step 4: Simplify right side
    407.06x = 116,269.88
  5. Step 5: Solve for x
    x = 116,269.88/407.06
  6. Step 6: Final answer
    x = 285.64

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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.