Finding the Fourth Proportional to 192,909.60, 289,398.42 and 66,539.88
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Solution
The fourth proportional to 192,909.60, 289,398.42 and 66,539.88 is: 99,821.55
Step by Step Solution
- Step 1: Write the proportion equation
192,909.60 : 289,398.42 = 66,539.88 : x - Step 2: Convert to fraction form
192,909.60/289,398.42 = 66,539.88/x - Step 3: Cross multiply
192,909.60x = 289,398.42 × 66,539.88 - Step 4: Simplify right side
192,909.60x = 19,256,536,138.99 - Step 5: Solve for x
x = 19,256,536,138.99/192,909.60 - Step 6: Final answer
x = 99,821.55
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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.