Home / 238,183.74-357,321.78-80,423.28

Finding the Fourth Proportional to 238,183.74, 357,321.78 and 80,423.28

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Solution

The fourth proportional to 238,183.74, 357,321.78 and 80,423.28 is: 120,650.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,183.74 : 357,321.78 = 80,423.28 : x
  2. Step 2: Convert to fraction form
    238,183.74/357,321.78 = 80,423.28/x
  3. Step 3: Cross multiply
    238,183.74x = 357,321.78 × 80,423.28
  4. Step 4: Simplify right side
    238,183.74x = 28,736,989,563.04
  5. Step 5: Solve for x
    x = 28,736,989,563.04/238,183.74
  6. Step 6: Final answer
    x = 120,650.51

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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.