Finding the Fourth Proportional to 389,755.76, 537,664.44 and 236,753.12
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Solution
The fourth proportional to 389,755.76, 537,664.44 and 236,753.12 is: 326,598.72
Step by Step Solution
- Step 1: Write the proportion equation
389,755.76 : 537,664.44 = 236,753.12 : x - Step 2: Convert to fraction form
389,755.76/537,664.44 = 236,753.12/x - Step 3: Cross multiply
389,755.76x = 537,664.44 × 236,753.12 - Step 4: Simplify right side
389,755.76x = 127,293,733,683.05 - Step 5: Solve for x
x = 127,293,733,683.05/389,755.76 - Step 6: Final answer
x = 326,598.72
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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.