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Finding the Fourth Proportional to 371,179.87, 512,200.06 and 218,224.33

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Solution

The fourth proportional to 371,179.87, 512,200.06 and 218,224.33 is: 301,133.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,179.87 : 512,200.06 = 218,224.33 : x
  2. Step 2: Convert to fraction form
    371,179.87/512,200.06 = 218,224.33/x
  3. Step 3: Cross multiply
    371,179.87x = 512,200.06 × 218,224.33
  4. Step 4: Simplify right side
    371,179.87x = 111,774,514,919.46
  5. Step 5: Solve for x
    x = 111,774,514,919.46/371,179.87
  6. Step 6: Final answer
    x = 301,133.02

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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.