Finding the Fourth Proportional to 427,582.10, 641,113.94 and 214,101.74
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Solution
The fourth proportional to 427,582.10, 641,113.94 and 214,101.74 is: 321,022.82
Step by Step Solution
- Step 1: Write the proportion equation
427,582.10 : 641,113.94 = 214,101.74 : x - Step 2: Convert to fraction form
427,582.10/641,113.94 = 214,101.74/x - Step 3: Cross multiply
427,582.10x = 641,113.94 × 214,101.74 - Step 4: Simplify right side
427,582.10x = 137,263,610,092.26 - Step 5: Solve for x
x = 137,263,610,092.26/427,582.10 - Step 6: Final answer
x = 321,022.82
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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.