Finding the Fourth Proportional to 236,465.10, 326,328.76 and 129,042.06
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Solution
The fourth proportional to 236,465.10, 326,328.76 and 129,042.06 is: 178,081.81
Step by Step Solution
- Step 1: Write the proportion equation
236,465.10 : 326,328.76 = 129,042.06 : x - Step 2: Convert to fraction form
236,465.10/326,328.76 = 129,042.06/x - Step 3: Cross multiply
236,465.10x = 326,328.76 × 129,042.06 - Step 4: Simplify right side
236,465.10x = 42,110,134,317.23 - Step 5: Solve for x
x = 42,110,134,317.23/236,465.10 - Step 6: Final answer
x = 178,081.81
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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.