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Finding the Fourth Proportional to 220,495.46, 330,741.95 and 80,254.08

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Solution

The fourth proportional to 220,495.46, 330,741.95 and 80,254.08 is: 120,380.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,495.46 : 330,741.95 = 80,254.08 : x
  2. Step 2: Convert to fraction form
    220,495.46/330,741.95 = 80,254.08/x
  3. Step 3: Cross multiply
    220,495.46x = 330,741.95 × 80,254.08
  4. Step 4: Simplify right side
    220,495.46x = 26,543,390,513.39
  5. Step 5: Solve for x
    x = 26,543,390,513.39/220,495.46
  6. Step 6: Final answer
    x = 120,380.67

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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.