Finding the Fourth Proportional to 289,478.93, 399,503.09 and 182,140.97
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Solution
The fourth proportional to 289,478.93, 399,503.09 and 182,140.97 is: 251,368.49
Step by Step Solution
- Step 1: Write the proportion equation
289,478.93 : 399,503.09 = 182,140.97 : x - Step 2: Convert to fraction form
289,478.93/399,503.09 = 182,140.97/x - Step 3: Cross multiply
289,478.93x = 399,503.09 × 182,140.97 - Step 4: Simplify right side
289,478.93x = 72,765,880,330.60 - Step 5: Solve for x
x = 72,765,880,330.60/289,478.93 - Step 6: Final answer
x = 251,368.49
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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.