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Finding the Fourth Proportional to 371,992.40, 513,324.24 and 202,222.88

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Solution

The fourth proportional to 371,992.40, 513,324.24 and 202,222.88 is: 279,053.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,992.40 : 513,324.24 = 202,222.88 : x
  2. Step 2: Convert to fraction form
    371,992.40/513,324.24 = 202,222.88/x
  3. Step 3: Cross multiply
    371,992.40x = 513,324.24 × 202,222.88
  4. Step 4: Simplify right side
    371,992.40x = 103,805,906,186.61
  5. Step 5: Solve for x
    x = 103,805,906,186.61/371,992.40
  6. Step 6: Final answer
    x = 279,053.84

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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.