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Finding the Fourth Proportional to 298,870.29, 448,344.27 and 121,383.09

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Solution

The fourth proportional to 298,870.29, 448,344.27 and 121,383.09 is: 182,090.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,870.29 : 448,344.27 = 121,383.09 : x
  2. Step 2: Convert to fraction form
    298,870.29/448,344.27 = 121,383.09/x
  3. Step 3: Cross multiply
    298,870.29x = 448,344.27 × 121,383.09
  4. Step 4: Simplify right side
    298,870.29x = 54,421,412,876.39
  5. Step 5: Solve for x
    x = 54,421,412,876.39/298,870.29
  6. Step 6: Final answer
    x = 182,090.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.