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Finding the Fourth Proportional to 251,346.69, 346,806.09 and 149,408.19

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Solution

The fourth proportional to 251,346.69, 346,806.09 and 149,408.19 is: 206,152.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,346.69 : 346,806.09 = 149,408.19 : x
  2. Step 2: Convert to fraction form
    251,346.69/346,806.09 = 149,408.19/x
  3. Step 3: Cross multiply
    251,346.69x = 346,806.09 × 149,408.19
  4. Step 4: Simplify right side
    251,346.69x = 51,815,670,187.88
  5. Step 5: Solve for x
    x = 51,815,670,187.88/251,346.69
  6. Step 6: Final answer
    x = 206,152.19

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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.