Finding the Fourth Proportional to 236,631.92, 326,565.29 and 129,211.95
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Solution
The fourth proportional to 236,631.92, 326,565.29 and 129,211.95 is: 178,319.72
Step by Step Solution
- Step 1: Write the proportion equation
236,631.92 : 326,565.29 = 129,211.95 : x - Step 2: Convert to fraction form
236,631.92/326,565.29 = 129,211.95/x - Step 3: Cross multiply
236,631.92x = 326,565.29 × 129,211.95 - Step 4: Simplify right side
236,631.92x = 42,196,138,246.25 - Step 5: Solve for x
x = 42,196,138,246.25/236,631.92 - Step 6: Final answer
x = 178,319.72
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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.