Home / 371,371.08-512,504.38-210,222.80

Finding the Fourth Proportional to 371,371.08, 512,504.38 and 210,222.80

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Solution

The fourth proportional to 371,371.08, 512,504.38 and 210,222.80 is: 290,114.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,371.08 : 512,504.38 = 210,222.80 : x
  2. Step 2: Convert to fraction form
    371,371.08/512,504.38 = 210,222.80/x
  3. Step 3: Cross multiply
    371,371.08x = 512,504.38 × 210,222.80
  4. Step 4: Simplify right side
    371,371.08x = 107,740,105,775.86
  5. Step 5: Solve for x
    x = 107,740,105,775.86/371,371.08
  6. Step 6: Final answer
    x = 290,114.42

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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.