Home / 425,634.40-637,933.20-188,725.60

Finding the Fourth Proportional to 425,634.40, 637,933.20 and 188,725.60

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Solution

The fourth proportional to 425,634.40, 637,933.20 and 188,725.60 is: 282,858.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,634.40 : 637,933.20 = 188,725.60 : x
  2. Step 2: Convert to fraction form
    425,634.40/637,933.20 = 188,725.60/x
  3. Step 3: Cross multiply
    425,634.40x = 637,933.20 × 188,725.60
  4. Step 4: Simplify right side
    425,634.40x = 120,394,325,929.92
  5. Step 5: Solve for x
    x = 120,394,325,929.92/425,634.40
  6. Step 6: Final answer
    x = 282,858.54

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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.