Finding the Fourth Proportional to 383,792.80, 529,622.40 and 214,055.68
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Solution
The fourth proportional to 383,792.80, 529,622.40 and 214,055.68 is: 295,390.33
Step by Step Solution
- Step 1: Write the proportion equation
383,792.80 : 529,622.40 = 214,055.68 : x - Step 2: Convert to fraction form
383,792.80/529,622.40 = 214,055.68/x - Step 3: Cross multiply
383,792.80x = 529,622.40 × 214,055.68 - Step 4: Simplify right side
383,792.80x = 113,368,682,975.23 - Step 5: Solve for x
x = 113,368,682,975.23/383,792.80 - Step 6: Final answer
x = 295,390.33
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1.5x scale
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.