Home / 371,786.22-513,064.02-202,020.36

Finding the Fourth Proportional to 371,786.22, 513,064.02 and 202,020.36

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Solution

The fourth proportional to 371,786.22, 513,064.02 and 202,020.36 is: 278,787.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,786.22 : 513,064.02 = 202,020.36 : x
  2. Step 2: Convert to fraction form
    371,786.22/513,064.02 = 202,020.36/x
  3. Step 3: Cross multiply
    371,786.22x = 513,064.02 × 202,020.36
  4. Step 4: Simplify right side
    371,786.22x = 103,649,378,023.45
  5. Step 5: Solve for x
    x = 103,649,378,023.45/371,786.22
  6. Step 6: Final answer
    x = 278,787.57

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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.