Finding the Fourth Proportional to 428,571.34, 642,946.92 and 162,325.96
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Solution
The fourth proportional to 428,571.34, 642,946.92 and 162,325.96 is: 243,522.99
Step by Step Solution
- Step 1: Write the proportion equation
428,571.34 : 642,946.92 = 162,325.96 : x - Step 2: Convert to fraction form
428,571.34/642,946.92 = 162,325.96/x - Step 3: Cross multiply
428,571.34x = 642,946.92 × 162,325.96 - Step 4: Simplify right side
428,571.34x = 104,366,973,801.95 - Step 5: Solve for x
x = 104,366,973,801.95/428,571.34 - Step 6: Final answer
x = 243,522.99
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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.