Finding the Fourth Proportional to 419,069.13, 628,669.32 and 138,651.99
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Solution
The fourth proportional to 419,069.13, 628,669.32 and 138,651.99 is: 207,999.70
Step by Step Solution
- Step 1: Write the proportion equation
419,069.13 : 628,669.32 = 138,651.99 : x - Step 2: Convert to fraction form
419,069.13/628,669.32 = 138,651.99/x - Step 3: Cross multiply
419,069.13x = 628,669.32 × 138,651.99 - Step 4: Simplify right side
419,069.13x = 87,166,252,269.95 - Step 5: Solve for x
x = 87,166,252,269.95/419,069.13 - Step 6: Final answer
x = 207,999.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.