Finding the Fourth Proportional to 226,088.19, 312,026.49 and 129,301.02
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Solution
The fourth proportional to 226,088.19, 312,026.49 and 129,301.02 is: 178,449.58
Step by Step Solution
- Step 1: Write the proportion equation
226,088.19 : 312,026.49 = 129,301.02 : x - Step 2: Convert to fraction form
226,088.19/312,026.49 = 129,301.02/x - Step 3: Cross multiply
226,088.19x = 312,026.49 × 129,301.02 - Step 4: Simplify right side
226,088.19x = 40,345,343,424.02 - Step 5: Solve for x
x = 40,345,343,424.02/226,088.19 - Step 6: Final answer
x = 178,449.58
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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.