Finding the Fourth Proportional to 753,156.12, 1,129,733.96 and 220,677
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Solution
The fourth proportional to 753,156.12, 1,129,733.96 and 220,677 is: 331,015.43
Step by Step Solution
- Step 1: Write the proportion equation
753,156.12 : 1,129,733.96 = 220,677 : x - Step 2: Convert to fraction form
753,156.12/1,129,733.96 = 220,677/x - Step 3: Cross multiply
753,156.12x = 1,129,733.96 × 220,677 - Step 4: Simplify right side
753,156.12x = 249,306,299,987.54 - Step 5: Solve for x
x = 249,306,299,987.54/753,156.12 - Step 6: Final answer
x = 331,015.43
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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.