Finding the Fourth Proportional to 310,537.80, 465,806.70 and 258,049.80
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Solution
The fourth proportional to 310,537.80, 465,806.70 and 258,049.80 is: 387,074.70
Step by Step Solution
- Step 1: Write the proportion equation
310,537.80 : 465,806.70 = 258,049.80 : x - Step 2: Convert to fraction form
310,537.80/465,806.70 = 258,049.80/x - Step 3: Cross multiply
310,537.80x = 465,806.70 × 258,049.80 - Step 4: Simplify right side
310,537.80x = 120,201,325,773.66 - Step 5: Solve for x
x = 120,201,325,773.66/310,537.80 - Step 6: Final answer
x = 387,074.70
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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.