Home / 312,846.16-431,614.56-205,474.36

Finding the Fourth Proportional to 312,846.16, 431,614.56 and 205,474.36

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Solution

The fourth proportional to 312,846.16, 431,614.56 and 205,474.36 is: 283,480.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,846.16 : 431,614.56 = 205,474.36 : x
  2. Step 2: Convert to fraction form
    312,846.16/431,614.56 = 205,474.36/x
  3. Step 3: Cross multiply
    312,846.16x = 431,614.56 × 205,474.36
  4. Step 4: Simplify right side
    312,846.16x = 88,685,725,482.68
  5. Step 5: Solve for x
    x = 88,685,725,482.68/312,846.16
  6. Step 6: Final answer
    x = 283,480.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.