Finding the Fourth Proportional to 192,809.70, 289,214.55 and 99,497.70
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Solution
The fourth proportional to 192,809.70, 289,214.55 and 99,497.70 is: 149,246.55
Step by Step Solution
- Step 1: Write the proportion equation
192,809.70 : 289,214.55 = 99,497.70 : x - Step 2: Convert to fraction form
192,809.70/289,214.55 = 99,497.70/x - Step 3: Cross multiply
192,809.70x = 289,214.55 × 99,497.70 - Step 4: Simplify right side
192,809.70x = 28,776,182,531.54 - Step 5: Solve for x
x = 28,776,182,531.54/192,809.70 - Step 6: Final answer
x = 149,246.55
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Similar ratio
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1.5x scale
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.