Finding the Fourth Proportional to 236,511.23, 326,386.40 and 129,083.63
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Solution
The fourth proportional to 236,511.23, 326,386.40 and 129,083.63 is: 178,135.90
Step by Step Solution
- Step 1: Write the proportion equation
236,511.23 : 326,386.40 = 129,083.63 : x - Step 2: Convert to fraction form
236,511.23/326,386.40 = 129,083.63/x - Step 3: Cross multiply
236,511.23x = 326,386.40 × 129,083.63 - Step 4: Simplify right side
236,511.23x = 42,131,139,017.28 - Step 5: Solve for x
x = 42,131,139,017.28/236,511.23 - Step 6: Final answer
x = 178,135.90
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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.