Finding the Fourth Proportional to 383,923.14, 529,825.20 and 214,153.62
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Solution
The fourth proportional to 383,923.14, 529,825.20 and 214,153.62 is: 295,538.28
Step by Step Solution
- Step 1: Write the proportion equation
383,923.14 : 529,825.20 = 214,153.62 : x - Step 2: Convert to fraction form
383,923.14/529,825.20 = 214,153.62/x - Step 3: Cross multiply
383,923.14x = 529,825.20 × 214,153.62 - Step 4: Simplify right side
383,923.14x = 113,463,984,547.22 - Step 5: Solve for x
x = 113,463,984,547.22/383,923.14 - Step 6: Final answer
x = 295,538.28
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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.