Home / 371,383.41-512,511.23-218,428.04

Finding the Fourth Proportional to 371,383.41, 512,511.23 and 218,428.04

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Solution

The fourth proportional to 371,383.41, 512,511.23 and 218,428.04 is: 301,431.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,383.41 : 512,511.23 = 218,428.04 : x
  2. Step 2: Convert to fraction form
    371,383.41/512,511.23 = 218,428.04/x
  3. Step 3: Cross multiply
    371,383.41x = 512,511.23 × 218,428.04
  4. Step 4: Simplify right side
    371,383.41x = 111,946,825,274.24
  5. Step 5: Solve for x
    x = 111,946,825,274.24/371,383.41
  6. Step 6: Final answer
    x = 301,431.95

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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.