Home / 371,786.21-513,068.22-202,020.33

Finding the Fourth Proportional to 371,786.21, 513,068.22 and 202,020.33

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Solution

The fourth proportional to 371,786.21, 513,068.22 and 202,020.33 is: 278,789.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,786.21 : 513,068.22 = 202,020.33 : x
  2. Step 2: Convert to fraction form
    371,786.21/513,068.22 = 202,020.33/x
  3. Step 3: Cross multiply
    371,786.21x = 513,068.22 × 202,020.33
  4. Step 4: Simplify right side
    371,786.21x = 103,650,210,106.81
  5. Step 5: Solve for x
    x = 103,650,210,106.81/371,786.21
  6. Step 6: Final answer
    x = 278,789.82

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1.5x scale

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.