Home / 397,114.11-548,021.09-215,826.50

Finding the Fourth Proportional to 397,114.11, 548,021.09 and 215,826.50

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Solution

The fourth proportional to 397,114.11, 548,021.09 and 215,826.50 is: 297,842.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,114.11 : 548,021.09 = 215,826.50 : x
  2. Step 2: Convert to fraction form
    397,114.11/548,021.09 = 215,826.50/x
  3. Step 3: Cross multiply
    397,114.11x = 548,021.09 × 215,826.50
  4. Step 4: Simplify right side
    397,114.11x = 118,277,473,780.89
  5. Step 5: Solve for x
    x = 118,277,473,780.89/397,114.11
  6. Step 6: Final answer
    x = 297,842.54

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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.