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Finding the Fourth Proportional to 216,087.74, 298,216.05 and 120,613.10

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Solution

The fourth proportional to 216,087.74, 298,216.05 and 120,613.10 is: 166,454.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,087.74 : 298,216.05 = 120,613.10 : x
  2. Step 2: Convert to fraction form
    216,087.74/298,216.05 = 120,613.10/x
  3. Step 3: Cross multiply
    216,087.74x = 298,216.05 × 120,613.10
  4. Step 4: Simplify right side
    216,087.74x = 35,968,762,260.26
  5. Step 5: Solve for x
    x = 35,968,762,260.26/216,087.74
  6. Step 6: Final answer
    x = 166,454.43

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