Home / 397,156.26-548,081.10-215,868.06

Finding the Fourth Proportional to 397,156.26, 548,081.10 and 215,868.06

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Solution

The fourth proportional to 397,156.26, 548,081.10 and 215,868.06 is: 297,900.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,156.26 : 548,081.10 = 215,868.06 : x
  2. Step 2: Convert to fraction form
    397,156.26/548,081.10 = 215,868.06/x
  3. Step 3: Cross multiply
    397,156.26x = 548,081.10 × 215,868.06
  4. Step 4: Simplify right side
    397,156.26x = 118,313,203,779.67
  5. Step 5: Solve for x
    x = 118,313,203,779.67/397,156.26
  6. Step 6: Final answer
    x = 297,900.89

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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.