Finding the Fourth Proportional to 258,325.70, 387,418.28 and 163,413.41
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Solution
The fourth proportional to 258,325.70, 387,418.28 and 163,413.41 is: 245,075.66
Step by Step Solution
- Step 1: Write the proportion equation
258,325.70 : 387,418.28 = 163,413.41 : x - Step 2: Convert to fraction form
258,325.70/387,418.28 = 163,413.41/x - Step 3: Cross multiply
258,325.70x = 387,418.28 × 163,413.41 - Step 4: Simplify right side
258,325.70x = 63,309,339,476.98 - Step 5: Solve for x
x = 63,309,339,476.98/258,325.70 - Step 6: Final answer
x = 245,075.66
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1.5x scale
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.