Finding the Fourth Proportional to 236,608.74, 326,520.59 and 129,178.80
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Solution
The fourth proportional to 236,608.74, 326,520.59 and 129,178.80 is: 178,267.03
Step by Step Solution
- Step 1: Write the proportion equation
236,608.74 : 326,520.59 = 129,178.80 : x - Step 2: Convert to fraction form
236,608.74/326,520.59 = 129,178.80/x - Step 3: Cross multiply
236,608.74x = 326,520.59 × 129,178.80 - Step 4: Simplify right side
236,608.74x = 42,179,537,345.60 - Step 5: Solve for x
x = 42,179,537,345.60/236,608.74 - Step 6: Final answer
x = 178,267.03
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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.