Home / 397,113.02-548,021.23-215,828.54

Finding the Fourth Proportional to 397,113.02, 548,021.23 and 215,828.54

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Solution

The fourth proportional to 397,113.02, 548,021.23 and 215,828.54 is: 297,846.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,113.02 : 548,021.23 = 215,828.54 : x
  2. Step 2: Convert to fraction form
    397,113.02/548,021.23 = 215,828.54/x
  3. Step 3: Cross multiply
    397,113.02x = 548,021.23 × 215,828.54
  4. Step 4: Simplify right side
    397,113.02x = 118,278,618,680.23
  5. Step 5: Solve for x
    x = 118,278,618,680.23/397,113.02
  6. Step 6: Final answer
    x = 297,846.24

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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.