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Finding the Fourth Proportional to 371,448.11, 512,600.45 and 218,492.97

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Solution

The fourth proportional to 371,448.11, 512,600.45 and 218,492.97 is: 301,521.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,448.11 : 512,600.45 = 218,492.97 : x
  2. Step 2: Convert to fraction form
    371,448.11/512,600.45 = 218,492.97/x
  3. Step 3: Cross multiply
    371,448.11x = 512,600.45 × 218,492.97
  4. Step 4: Simplify right side
    371,448.11x = 111,999,593,651.37
  5. Step 5: Solve for x
    x = 111,999,593,651.37/371,448.11
  6. Step 6: Final answer
    x = 301,521.51

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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.