Home / 389,874.06-537,965.55-220,104.54

Finding the Fourth Proportional to 389,874.06, 537,965.55 and 220,104.54

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Solution

The fourth proportional to 389,874.06, 537,965.55 and 220,104.54 is: 303,710.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,874.06 : 537,965.55 = 220,104.54 : x
  2. Step 2: Convert to fraction form
    389,874.06/537,965.55 = 220,104.54/x
  3. Step 3: Cross multiply
    389,874.06x = 537,965.55 × 220,104.54
  4. Step 4: Simplify right side
    389,874.06x = 118,408,659,918.60
  5. Step 5: Solve for x
    x = 118,408,659,918.60/389,874.06
  6. Step 6: Final answer
    x = 303,710.02

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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.