Finding the Fourth Proportional to 372,528.20, 514,132.70 and 209,211.55
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Solution
The fourth proportional to 372,528.20, 514,132.70 and 209,211.55 is: 288,736.52
Step by Step Solution
- Step 1: Write the proportion equation
372,528.20 : 514,132.70 = 209,211.55 : x - Step 2: Convert to fraction form
372,528.20/514,132.70 = 209,211.55/x - Step 3: Cross multiply
372,528.20x = 514,132.70 × 209,211.55 - Step 4: Simplify right side
372,528.20x = 107,562,496,741.30 - Step 5: Solve for x
x = 107,562,496,741.30/372,528.20 - Step 6: Final answer
x = 288,736.52
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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.