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Finding the Fourth Proportional to 220,131.92, 303,779.40 and 119,530.64

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Solution

The fourth proportional to 220,131.92, 303,779.40 and 119,530.64 is: 164,950.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,131.92 : 303,779.40 = 119,530.64 : x
  2. Step 2: Convert to fraction form
    220,131.92/303,779.40 = 119,530.64/x
  3. Step 3: Cross multiply
    220,131.92x = 303,779.40 × 119,530.64
  4. Step 4: Simplify right side
    220,131.92x = 36,310,946,100.82
  5. Step 5: Solve for x
    x = 36,310,946,100.82/220,131.92
  6. Step 6: Final answer
    x = 164,950.84

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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.