Finding the Fourth Proportional to 236,830.12, 326,848.26 and 129,416.44
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Solution
The fourth proportional to 236,830.12, 326,848.26 and 129,416.44 is: 178,607.09
Step by Step Solution
- Step 1: Write the proportion equation
236,830.12 : 326,848.26 = 129,416.44 : x - Step 2: Convert to fraction form
236,830.12/326,848.26 = 129,416.44/x - Step 3: Cross multiply
236,830.12x = 326,848.26 × 129,416.44 - Step 4: Simplify right side
236,830.12x = 42,299,538,229.39 - Step 5: Solve for x
x = 42,299,538,229.39/236,830.12 - Step 6: Final answer
x = 178,607.09
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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.