Finding the Fourth Proportional to 438,765.19, 658,147.79 and 106,341.19
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Solution
The fourth proportional to 438,765.19, 658,147.79 and 106,341.19 is: 159,511.78
Step by Step Solution
- Step 1: Write the proportion equation
438,765.19 : 658,147.79 = 106,341.19 : x - Step 2: Convert to fraction form
438,765.19/658,147.79 = 106,341.19/x - Step 3: Cross multiply
438,765.19x = 658,147.79 × 106,341.19 - Step 4: Simplify right side
438,765.19x = 69,988,217,804.95 - Step 5: Solve for x
x = 69,988,217,804.95/438,765.19 - Step 6: Final answer
x = 159,511.78
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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.