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Finding the Fourth Proportional to 371,216.10, 512,278.20 and 201,450.22

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Solution

The fourth proportional to 371,216.10, 512,278.20 and 201,450.22 is: 278,001.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,216.10 : 512,278.20 = 201,450.22 : x
  2. Step 2: Convert to fraction form
    371,216.10/512,278.20 = 201,450.22/x
  3. Step 3: Cross multiply
    371,216.10x = 512,278.20 × 201,450.22
  4. Step 4: Simplify right side
    371,216.10x = 103,198,556,091.20
  5. Step 5: Solve for x
    x = 103,198,556,091.20/371,216.10
  6. Step 6: Final answer
    x = 278,001.29

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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.