Finding the Fourth Proportional to 236,455.73, 326,316.79 and 129,031.66
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Solution
The fourth proportional to 236,455.73, 326,316.79 and 129,031.66 is: 178,067.99
Step by Step Solution
- Step 1: Write the proportion equation
236,455.73 : 326,316.79 = 129,031.66 : x - Step 2: Convert to fraction form
236,455.73/326,316.79 = 129,031.66/x - Step 3: Cross multiply
236,455.73x = 326,316.79 × 129,031.66 - Step 4: Simplify right side
236,455.73x = 42,105,195,961.20 - Step 5: Solve for x
x = 42,105,195,961.20/236,455.73 - Step 6: Final answer
x = 178,067.99
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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.