Finding the Fourth Proportional to 229,486.88, 316,657.44 and 128,865.44
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Solution
The fourth proportional to 229,486.88, 316,657.44 and 128,865.44 is: 177,814.96
Step by Step Solution
- Step 1: Write the proportion equation
229,486.88 : 316,657.44 = 128,865.44 : x - Step 2: Convert to fraction form
229,486.88/316,657.44 = 128,865.44/x - Step 3: Cross multiply
229,486.88x = 316,657.44 × 128,865.44 - Step 4: Simplify right side
229,486.88x = 40,806,200,334.87 - Step 5: Solve for x
x = 40,806,200,334.87/229,486.88 - Step 6: Final answer
x = 177,814.96
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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.