Home / 204,489.12-306,782.32-64,247.80

Finding the Fourth Proportional to 204,489.12, 306,782.32 and 64,247.80

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Solution

The fourth proportional to 204,489.12, 306,782.32 and 64,247.80 is: 96,386.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,489.12 : 306,782.32 = 64,247.80 : x
  2. Step 2: Convert to fraction form
    204,489.12/306,782.32 = 64,247.80/x
  3. Step 3: Cross multiply
    204,489.12x = 306,782.32 × 64,247.80
  4. Step 4: Simplify right side
    204,489.12x = 19,710,089,138.90
  5. Step 5: Solve for x
    x = 19,710,089,138.90/204,489.12
  6. Step 6: Final answer
    x = 96,386.98

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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.