Finding the Fourth Proportional to 192,367.12, 288,459.86 and 112,428.02
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Solution
The fourth proportional to 192,367.12, 288,459.86 and 112,428.02 is: 168,588.95
Step by Step Solution
- Step 1: Write the proportion equation
192,367.12 : 288,459.86 = 112,428.02 : x - Step 2: Convert to fraction form
192,367.12/288,459.86 = 112,428.02/x - Step 3: Cross multiply
192,367.12x = 288,459.86 × 112,428.02 - Step 4: Simplify right side
192,367.12x = 32,430,970,909.28 - Step 5: Solve for x
x = 32,430,970,909.28/192,367.12 - Step 6: Final answer
x = 168,588.95
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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.