Finding the Fourth Proportional to 144,276.09, 216,346.02 and 84,321.77
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Solution
The fourth proportional to 144,276.09, 216,346.02 and 84,321.77 is: 126,442.84
Step by Step Solution
- Step 1: Write the proportion equation
144,276.09 : 216,346.02 = 84,321.77 : x - Step 2: Convert to fraction form
144,276.09/216,346.02 = 84,321.77/x - Step 3: Cross multiply
144,276.09x = 216,346.02 × 84,321.77 - Step 4: Simplify right side
144,276.09x = 18,242,678,257.13 - Step 5: Solve for x
x = 18,242,678,257.13/144,276.09 - Step 6: Final answer
x = 126,442.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.