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Finding the Fourth Proportional to 216,415.59, 298,651.89 and 119,625.81

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Solution

The fourth proportional to 216,415.59, 298,651.89 and 119,625.81 is: 165,082.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,415.59 : 298,651.89 = 119,625.81 : x
  2. Step 2: Convert to fraction form
    216,415.59/298,651.89 = 119,625.81/x
  3. Step 3: Cross multiply
    216,415.59x = 298,651.89 × 119,625.81
  4. Step 4: Simplify right side
    216,415.59x = 35,726,472,157.89
  5. Step 5: Solve for x
    x = 35,726,472,157.89/216,415.59
  6. Step 6: Final answer
    x = 165,082.71

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1.5x scale

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.