Finding the Fourth Proportional to 431,821.04, 646,864.08 and 215,026.63
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Solution
The fourth proportional to 431,821.04, 646,864.08 and 215,026.63 is: 322,107.98
Step by Step Solution
- Step 1: Write the proportion equation
431,821.04 : 646,864.08 = 215,026.63 : x - Step 2: Convert to fraction form
431,821.04/646,864.08 = 215,026.63/x - Step 3: Cross multiply
431,821.04x = 646,864.08 × 215,026.63 - Step 4: Simplify right side
431,821.04x = 139,093,003,190.45 - Step 5: Solve for x
x = 139,093,003,190.45/431,821.04 - Step 6: Final answer
x = 322,107.98
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.