Home / 318,922.20-478,383.30-177,204.60

Finding the Fourth Proportional to 318,922.20, 478,383.30 and 177,204.60

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Solution

The fourth proportional to 318,922.20, 478,383.30 and 177,204.60 is: 265,806.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,922.20 : 478,383.30 = 177,204.60 : x
  2. Step 2: Convert to fraction form
    318,922.20/478,383.30 = 177,204.60/x
  3. Step 3: Cross multiply
    318,922.20x = 478,383.30 × 177,204.60
  4. Step 4: Simplify right side
    318,922.20x = 84,771,721,323.18
  5. Step 5: Solve for x
    x = 84,771,721,323.18/318,922.20
  6. Step 6: Final answer
    x = 265,806.90

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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.