Finding the Fourth Proportional to 261,903.51, 392,864.99 and 84,413.07
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Solution
The fourth proportional to 261,903.51, 392,864.99 and 84,413.07 is: 126,622.74
Step by Step Solution
- Step 1: Write the proportion equation
261,903.51 : 392,864.99 = 84,413.07 : x - Step 2: Convert to fraction form
261,903.51/392,864.99 = 84,413.07/x - Step 3: Cross multiply
261,903.51x = 392,864.99 × 84,413.07 - Step 4: Simplify right side
261,903.51x = 33,162,939,479.35 - Step 5: Solve for x
x = 33,162,939,479.35/261,903.51 - Step 6: Final answer
x = 126,622.74
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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.