Home / 371,213.10-512,273.79-210,065.22

Finding the Fourth Proportional to 371,213.10, 512,273.79 and 210,065.22

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Solution

The fourth proportional to 371,213.10, 512,273.79 and 210,065.22 is: 289,889.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,213.10 : 512,273.79 = 210,065.22 : x
  2. Step 2: Convert to fraction form
    371,213.10/512,273.79 = 210,065.22/x
  3. Step 3: Cross multiply
    371,213.10x = 512,273.79 × 210,065.22
  4. Step 4: Simplify right side
    371,213.10x = 107,610,906,396.58
  5. Step 5: Solve for x
    x = 107,610,906,396.58/371,213.10
  6. Step 6: Final answer
    x = 289,889.84

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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.