Finding the Fourth Proportional to 216,566.29, 298,862.16 and 121,072.99
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Solution
The fourth proportional to 216,566.29, 298,862.16 and 121,072.99 is: 167,081.11
Step by Step Solution
- Step 1: Write the proportion equation
216,566.29 : 298,862.16 = 121,072.99 : x - Step 2: Convert to fraction form
216,566.29/298,862.16 = 121,072.99/x - Step 3: Cross multiply
216,566.29x = 298,862.16 × 121,072.99 - Step 4: Simplify right side
216,566.29x = 36,184,135,309.06 - Step 5: Solve for x
x = 36,184,135,309.06/216,566.29 - Step 6: Final answer
x = 167,081.11
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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.