Finding the Fourth Proportional to 214,408.76, 321,567.99 and 138,279.26
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Solution
The fourth proportional to 214,408.76, 321,567.99 and 138,279.26 is: 207,389.77
Step by Step Solution
- Step 1: Write the proportion equation
214,408.76 : 321,567.99 = 138,279.26 : x - Step 2: Convert to fraction form
214,408.76/321,567.99 = 138,279.26/x - Step 3: Cross multiply
214,408.76x = 321,567.99 × 138,279.26 - Step 4: Simplify right side
214,408.76x = 44,466,183,696.89 - Step 5: Solve for x
x = 44,466,183,696.89/214,408.76 - Step 6: Final answer
x = 207,389.77
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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.