Home / 205,430.05-307,642.03-169,672.60

Finding the Fourth Proportional to 205,430.05, 307,642.03 and 169,672.60

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Solution

The fourth proportional to 205,430.05, 307,642.03 and 169,672.60 is: 254,093.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,430.05 : 307,642.03 = 169,672.60 : x
  2. Step 2: Convert to fraction form
    205,430.05/307,642.03 = 169,672.60/x
  3. Step 3: Cross multiply
    205,430.05x = 307,642.03 × 169,672.60
  4. Step 4: Simplify right side
    205,430.05x = 52,198,421,906.09
  5. Step 5: Solve for x
    x = 52,198,421,906.09/205,430.05
  6. Step 6: Final answer
    x = 254,093.41

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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.