Finding the Fourth Proportional to 372,755.79, 514,411.20 and 202,989.96
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Solution
The fourth proportional to 372,755.79, 514,411.20 and 202,989.96 is: 280,130.62
Step by Step Solution
- Step 1: Write the proportion equation
372,755.79 : 514,411.20 = 202,989.96 : x - Step 2: Convert to fraction form
372,755.79/514,411.20 = 202,989.96/x - Step 3: Cross multiply
372,755.79x = 514,411.20 × 202,989.96 - Step 4: Simplify right side
372,755.79x = 104,420,308,911.55 - Step 5: Solve for x
x = 104,420,308,911.55/372,755.79 - Step 6: Final answer
x = 280,130.62
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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.