Finding the Fourth Proportional to 229,415.57, 316,644.09 and 127,476.06
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Solution
The fourth proportional to 229,415.57, 316,644.09 and 127,476.06 is: 175,945.07
Step by Step Solution
- Step 1: Write the proportion equation
229,415.57 : 316,644.09 = 127,476.06 : x - Step 2: Convert to fraction form
229,415.57/316,644.09 = 127,476.06/x - Step 3: Cross multiply
229,415.57x = 316,644.09 × 127,476.06 - Step 4: Simplify right side
229,415.57x = 40,364,539,350.03 - Step 5: Solve for x
x = 40,364,539,350.03/229,415.57 - Step 6: Final answer
x = 175,945.07
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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.