Home / 268,823.20-403,234.80-190,091.20

Finding the Fourth Proportional to 268,823.20, 403,234.80 and 190,091.20

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Solution

The fourth proportional to 268,823.20, 403,234.80 and 190,091.20 is: 285,136.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,823.20 : 403,234.80 = 190,091.20 : x
  2. Step 2: Convert to fraction form
    268,823.20/403,234.80 = 190,091.20/x
  3. Step 3: Cross multiply
    268,823.20x = 403,234.80 × 190,091.20
  4. Step 4: Simplify right side
    268,823.20x = 76,651,387,013.76
  5. Step 5: Solve for x
    x = 76,651,387,013.76/268,823.20
  6. Step 6: Final answer
    x = 285,136.80

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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.