Home / 397,153.27-548,075.15-215,865.61

Finding the Fourth Proportional to 397,153.27, 548,075.15 and 215,865.61

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Solution

The fourth proportional to 397,153.27, 548,075.15 and 215,865.61 is: 297,896.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,153.27 : 548,075.15 = 215,865.61 : x
  2. Step 2: Convert to fraction form
    397,153.27/548,075.15 = 215,865.61/x
  3. Step 3: Cross multiply
    397,153.27x = 548,075.15 × 215,865.61
  4. Step 4: Simplify right side
    397,153.27x = 118,310,576,580.59
  5. Step 5: Solve for x
    x = 118,310,576,580.59/397,153.27
  6. Step 6: Final answer
    x = 297,896.52

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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.