Finding the Fourth Proportional to 155,968.24, 215,236.81 and 84,348.26
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Solution
The fourth proportional to 155,968.24, 215,236.81 and 84,348.26 is: 116,400.94
Step by Step Solution
- Step 1: Write the proportion equation
155,968.24 : 215,236.81 = 84,348.26 : x - Step 2: Convert to fraction form
155,968.24/215,236.81 = 84,348.26/x - Step 3: Cross multiply
155,968.24x = 215,236.81 × 84,348.26 - Step 4: Simplify right side
155,968.24x = 18,154,849,335.27 - Step 5: Solve for x
x = 18,154,849,335.27/155,968.24 - Step 6: Final answer
x = 116,400.94
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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.