Finding the Fourth Proportional to 418,913.75, 628,467.83 and 138,413.99
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Solution
The fourth proportional to 418,913.75, 628,467.83 and 138,413.99 is: 207,653.10
Step by Step Solution
- Step 1: Write the proportion equation
418,913.75 : 628,467.83 = 138,413.99 : x - Step 2: Convert to fraction form
418,913.75/628,467.83 = 138,413.99/x - Step 3: Cross multiply
418,913.75x = 628,467.83 × 138,413.99 - Step 4: Simplify right side
418,913.75x = 86,988,736,102.53 - Step 5: Solve for x
x = 86,988,736,102.53/418,913.75 - Step 6: Final answer
x = 207,653.10
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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.