Finding the Fourth Proportional to 312,115.83, 430,721.85 and 183,028.02
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Solution
The fourth proportional to 312,115.83, 430,721.85 and 183,028.02 is: 252,579.84
Step by Step Solution
- Step 1: Write the proportion equation
312,115.83 : 430,721.85 = 183,028.02 : x - Step 2: Convert to fraction form
312,115.83/430,721.85 = 183,028.02/x - Step 3: Cross multiply
312,115.83x = 430,721.85 × 183,028.02 - Step 4: Simplify right side
312,115.83x = 78,834,167,376.24 - Step 5: Solve for x
x = 78,834,167,376.24/312,115.83 - Step 6: Final answer
x = 252,579.84
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.