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Finding the Fourth Proportional to 342,910.25, 473,106.79 and 222,144.11

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Solution

The fourth proportional to 342,910.25, 473,106.79 and 222,144.11 is: 306,488.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,910.25 : 473,106.79 = 222,144.11 : x
  2. Step 2: Convert to fraction form
    342,910.25/473,106.79 = 222,144.11/x
  3. Step 3: Cross multiply
    342,910.25x = 473,106.79 × 222,144.11
  4. Step 4: Simplify right side
    342,910.25x = 105,097,886,799.51
  5. Step 5: Solve for x
    x = 105,097,886,799.51/342,910.25
  6. Step 6: Final answer
    x = 306,488.03

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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.