Home / 397,113.06-548,020.26-215,825

Finding the Fourth Proportional to 397,113.06, 548,020.26 and 215,825

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Solution

The fourth proportional to 397,113.06, 548,020.26 and 215,825 is: 297,840.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,113.06 : 548,020.26 = 215,825 : x
  2. Step 2: Convert to fraction form
    397,113.06/548,020.26 = 215,825/x
  3. Step 3: Cross multiply
    397,113.06x = 548,020.26 × 215,825
  4. Step 4: Simplify right side
    397,113.06x = 118,276,472,614.50
  5. Step 5: Solve for x
    x = 118,276,472,614.50/397,113.06
  6. Step 6: Final answer
    x = 297,840.80

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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.