Finding the Fourth Proportional to 312,175.19, 468,073.16 and 122,408.20
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Solution
The fourth proportional to 312,175.19, 468,073.16 and 122,408.20 is: 183,537.95
Step by Step Solution
- Step 1: Write the proportion equation
312,175.19 : 468,073.16 = 122,408.20 : x - Step 2: Convert to fraction form
312,175.19/468,073.16 = 122,408.20/x - Step 3: Cross multiply
312,175.19x = 468,073.16 × 122,408.20 - Step 4: Simplify right side
312,175.19x = 57,295,992,983.91 - Step 5: Solve for x
x = 57,295,992,983.91/312,175.19 - Step 6: Final answer
x = 183,537.95
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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.