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Finding the Fourth Proportional to 216,277.91, 298,420.22 and 120,769.91

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Solution

The fourth proportional to 216,277.91, 298,420.22 and 120,769.91 is: 166,638.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,277.91 : 298,420.22 = 120,769.91 : x
  2. Step 2: Convert to fraction form
    216,277.91/298,420.22 = 120,769.91/x
  3. Step 3: Cross multiply
    216,277.91x = 298,420.22 × 120,769.91
  4. Step 4: Simplify right side
    216,277.91x = 36,040,181,015.63
  5. Step 5: Solve for x
    x = 36,040,181,015.63/216,277.91
  6. Step 6: Final answer
    x = 166,638.29

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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.