Home / 205,430.30-307,642.40-169,672.85

Finding the Fourth Proportional to 205,430.30, 307,642.40 and 169,672.85

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Solution

The fourth proportional to 205,430.30, 307,642.40 and 169,672.85 is: 254,093.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,430.30 : 307,642.40 = 169,672.85 : x
  2. Step 2: Convert to fraction form
    205,430.30/307,642.40 = 169,672.85/x
  3. Step 3: Cross multiply
    205,430.30x = 307,642.40 × 169,672.85
  4. Step 4: Simplify right side
    205,430.30x = 52,198,562,788.84
  5. Step 5: Solve for x
    x = 52,198,562,788.84/205,430.30
  6. Step 6: Final answer
    x = 254,093.79

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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.