Home / 397,267.45-548,239.65-215,991.61

Finding the Fourth Proportional to 397,267.45, 548,239.65 and 215,991.61

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Solution

The fourth proportional to 397,267.45, 548,239.65 and 215,991.61 is: 298,074.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,267.45 : 548,239.65 = 215,991.61 : x
  2. Step 2: Convert to fraction form
    397,267.45/548,239.65 = 215,991.61/x
  3. Step 3: Cross multiply
    397,267.45x = 548,239.65 × 215,991.61
  4. Step 4: Simplify right side
    397,267.45x = 118,415,164,669.34
  5. Step 5: Solve for x
    x = 118,415,164,669.34/397,267.45
  6. Step 6: Final answer
    x = 298,074.17

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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.