Finding the Fourth Proportional to 236,071.84, 325,774.88 and 128,642.56
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Solution
The fourth proportional to 236,071.84, 325,774.88 and 128,642.56 is: 177,524.41
Step by Step Solution
- Step 1: Write the proportion equation
236,071.84 : 325,774.88 = 128,642.56 : x - Step 2: Convert to fraction form
236,071.84/325,774.88 = 128,642.56/x - Step 3: Cross multiply
236,071.84x = 325,774.88 × 128,642.56 - Step 4: Simplify right side
236,071.84x = 41,908,514,546.89 - Step 5: Solve for x
x = 41,908,514,546.89/236,071.84 - Step 6: Final answer
x = 177,524.41
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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.