Home / 321,203.03-481,640.51-118,788.89

Finding the Fourth Proportional to 321,203.03, 481,640.51 and 118,788.89

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Solution

The fourth proportional to 321,203.03, 481,640.51 and 118,788.89 is: 178,122.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,203.03 : 481,640.51 = 118,788.89 : x
  2. Step 2: Convert to fraction form
    321,203.03/481,640.51 = 118,788.89/x
  3. Step 3: Cross multiply
    321,203.03x = 481,640.51 × 118,788.89
  4. Step 4: Simplify right side
    321,203.03x = 57,213,541,561.93
  5. Step 5: Solve for x
    x = 57,213,541,561.93/321,203.03
  6. Step 6: Final answer
    x = 178,122.67

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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.