Finding the Fourth Proportional to 213,921.36, 295,214.49 and 118,428.03
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Solution
The fourth proportional to 213,921.36, 295,214.49 and 118,428.03 is: 163,432.35
Step by Step Solution
- Step 1: Write the proportion equation
213,921.36 : 295,214.49 = 118,428.03 : x - Step 2: Convert to fraction form
213,921.36/295,214.49 = 118,428.03/x - Step 3: Cross multiply
213,921.36x = 295,214.49 × 118,428.03 - Step 4: Simplify right side
213,921.36x = 34,961,670,478.15 - Step 5: Solve for x
x = 34,961,670,478.15/213,921.36 - Step 6: Final answer
x = 163,432.35
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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.