Home / 204,539.28-306,619.48-104,478.78

Finding the Fourth Proportional to 204,539.28, 306,619.48 and 104,478.78

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Solution

The fourth proportional to 204,539.28, 306,619.48 and 104,478.78 is: 156,621.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,539.28 : 306,619.48 = 104,478.78 : x
  2. Step 2: Convert to fraction form
    204,539.28/306,619.48 = 104,478.78/x
  3. Step 3: Cross multiply
    204,539.28x = 306,619.48 × 104,478.78
  4. Step 4: Simplify right side
    204,539.28x = 32,035,228,162.63
  5. Step 5: Solve for x
    x = 32,035,228,162.63/204,539.28
  6. Step 6: Final answer
    x = 156,621.40

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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.