Finding the Fourth Proportional to 229,509.49, 316,716.75 and 127,532.31
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Solution
The fourth proportional to 229,509.49, 316,716.75 and 127,532.31 is: 175,991.06
Step by Step Solution
- Step 1: Write the proportion equation
229,509.49 : 316,716.75 = 127,532.31 : x - Step 2: Convert to fraction form
229,509.49/316,716.75 = 127,532.31/x - Step 3: Cross multiply
229,509.49x = 316,716.75 × 127,532.31 - Step 4: Simplify right side
229,509.49x = 40,391,618,743.19 - Step 5: Solve for x
x = 40,391,618,743.19/229,509.49 - Step 6: Final answer
x = 175,991.06
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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.