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Finding the Fourth Proportional to 371,216.35, 512,278.54 and 201,450.47

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Solution

The fourth proportional to 371,216.35, 512,278.54 and 201,450.47 is: 278,001.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,216.35 : 512,278.54 = 201,450.47 : x
  2. Step 2: Convert to fraction form
    371,216.35/512,278.54 = 201,450.47/x
  3. Step 3: Cross multiply
    371,216.35x = 512,278.54 × 201,450.47
  4. Step 4: Simplify right side
    371,216.35x = 103,198,752,653.91
  5. Step 5: Solve for x
    x = 103,198,752,653.91/371,216.35
  6. Step 6: Final answer
    x = 278,001.64

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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.