Finding the Fourth Proportional to 515,378.22, 773,140.26 and 160,428.12
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Solution
The fourth proportional to 515,378.22, 773,140.26 and 160,428.12 is: 240,664.88
Step by Step Solution
- Step 1: Write the proportion equation
515,378.22 : 773,140.26 = 160,428.12 : x - Step 2: Convert to fraction form
515,378.22/773,140.26 = 160,428.12/x - Step 3: Cross multiply
515,378.22x = 773,140.26 × 160,428.12 - Step 4: Simplify right side
515,378.22x = 124,033,438,408.11 - Step 5: Solve for x
x = 124,033,438,408.11/515,378.22 - Step 6: Final answer
x = 240,664.88
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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.