Home / 320,263.21-480,091.87-142,672.33

Finding the Fourth Proportional to 320,263.21, 480,091.87 and 142,672.33

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Solution

The fourth proportional to 320,263.21, 480,091.87 and 142,672.33 is: 213,873.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,263.21 : 480,091.87 = 142,672.33 : x
  2. Step 2: Convert to fraction form
    320,263.21/480,091.87 = 142,672.33/x
  3. Step 3: Cross multiply
    320,263.21x = 480,091.87 × 142,672.33
  4. Step 4: Simplify right side
    320,263.21x = 68,495,825,706.96
  5. Step 5: Solve for x
    x = 68,495,825,706.96/320,263.21
  6. Step 6: Final answer
    x = 213,873.54

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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.