Finding the Fourth Proportional to 236,308.39, 326,102.06 and 128,878.20
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Solution
The fourth proportional to 236,308.39, 326,102.06 and 128,878.20 is: 177,849.99
Step by Step Solution
- Step 1: Write the proportion equation
236,308.39 : 326,102.06 = 128,878.20 : x - Step 2: Convert to fraction form
236,308.39/326,102.06 = 128,878.20/x - Step 3: Cross multiply
236,308.39x = 326,102.06 × 128,878.20 - Step 4: Simplify right side
236,308.39x = 42,027,444,234.19 - Step 5: Solve for x
x = 42,027,444,234.19/236,308.39 - Step 6: Final answer
x = 177,849.99
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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.