Home / 393,975.96-591,022.24-144,638.52

Finding the Fourth Proportional to 393,975.96, 591,022.24 and 144,638.52

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Solution

The fourth proportional to 393,975.96, 591,022.24 and 144,638.52 is: 216,979.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,975.96 : 591,022.24 = 144,638.52 : x
  2. Step 2: Convert to fraction form
    393,975.96/591,022.24 = 144,638.52/x
  3. Step 3: Cross multiply
    393,975.96x = 591,022.24 × 144,638.52
  4. Step 4: Simplify right side
    393,975.96x = 85,484,582,080.68
  5. Step 5: Solve for x
    x = 85,484,582,080.68/393,975.96
  6. Step 6: Final answer
    x = 216,979.18

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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.