Finding the Fourth Proportional to 229,309.08, 316,452.06 and 128,716.44
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Solution
The fourth proportional to 229,309.08, 316,452.06 and 128,716.44 is: 177,631.79
Step by Step Solution
- Step 1: Write the proportion equation
229,309.08 : 316,452.06 = 128,716.44 : x - Step 2: Convert to fraction form
229,309.08/316,452.06 = 128,716.44/x - Step 3: Cross multiply
229,309.08x = 316,452.06 × 128,716.44 - Step 4: Simplify right side
229,309.08x = 40,732,582,593.87 - Step 5: Solve for x
x = 40,732,582,593.87/229,309.08 - Step 6: Final answer
x = 177,631.79
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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.