Finding the Fourth Proportional to 236,718.06, 326,669.19 and 129,288.12
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Solution
The fourth proportional to 236,718.06, 326,669.19 and 129,288.12 is: 178,416.66
Step by Step Solution
- Step 1: Write the proportion equation
236,718.06 : 326,669.19 = 129,288.12 : x - Step 2: Convert to fraction form
236,718.06/326,669.19 = 129,288.12/x - Step 3: Cross multiply
236,718.06x = 326,669.19 × 129,288.12 - Step 4: Simplify right side
236,718.06x = 42,234,445,437.02 - Step 5: Solve for x
x = 42,234,445,437.02/236,718.06 - Step 6: Final answer
x = 178,416.66
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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.