Finding the Fourth Proportional to 475,212.87, 655,794.27 and 257,422.05
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Solution
The fourth proportional to 475,212.87, 655,794.27 and 257,422.05 is: 355,242.70
Step by Step Solution
- Step 1: Write the proportion equation
475,212.87 : 655,794.27 = 257,422.05 : x - Step 2: Convert to fraction form
475,212.87/655,794.27 = 257,422.05/x - Step 3: Cross multiply
475,212.87x = 655,794.27 × 257,422.05 - Step 4: Simplify right side
475,212.87x = 168,815,905,361.65 - Step 5: Solve for x
x = 168,815,905,361.65/475,212.87 - Step 6: Final answer
x = 355,242.70
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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.