Finding the Fourth Proportional to 236,078.84, 325,784.76 and 128,649.80
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Solution
The fourth proportional to 236,078.84, 325,784.76 and 128,649.80 is: 177,534.52
Step by Step Solution
- Step 1: Write the proportion equation
236,078.84 : 325,784.76 = 128,649.80 : x - Step 2: Convert to fraction form
236,078.84/325,784.76 = 128,649.80/x - Step 3: Cross multiply
236,078.84x = 325,784.76 × 128,649.80 - Step 4: Simplify right side
236,078.84x = 41,912,144,217.05 - Step 5: Solve for x
x = 41,912,144,217.05/236,078.84 - Step 6: Final answer
x = 177,534.52
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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.