Finding the Fourth Proportional to 318,092.63, 438,968.74 and 182,128.67
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Solution
The fourth proportional to 318,092.63, 438,968.74 and 182,128.67 is: 251,338.09
Step by Step Solution
- Step 1: Write the proportion equation
318,092.63 : 438,968.74 = 182,128.67 : x - Step 2: Convert to fraction form
318,092.63/438,968.74 = 182,128.67/x - Step 3: Cross multiply
318,092.63x = 438,968.74 × 182,128.67 - Step 4: Simplify right side
318,092.63x = 79,948,792,787.78 - Step 5: Solve for x
x = 79,948,792,787.78/318,092.63 - Step 6: Final answer
x = 251,338.09
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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.