Home / 314,183.12-467,721.39-312,315.05

Finding the Fourth Proportional to 314,183.12, 467,721.39 and 312,315.05

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Solution

The fourth proportional to 314,183.12, 467,721.39 and 312,315.05 is: 464,940.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,183.12 : 467,721.39 = 312,315.05 : x
  2. Step 2: Convert to fraction form
    314,183.12/467,721.39 = 312,315.05/x
  3. Step 3: Cross multiply
    314,183.12x = 467,721.39 × 312,315.05
  4. Step 4: Simplify right side
    314,183.12x = 146,076,431,644.40
  5. Step 5: Solve for x
    x = 146,076,431,644.40/314,183.12
  6. Step 6: Final answer
    x = 464,940.43

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.