Finding the Fourth Proportional to 351,496.10, 526,889.09 and 138,413.54
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Solution
The fourth proportional to 351,496.10, 526,889.09 and 138,413.54 is: 207,480.50
Step by Step Solution
- Step 1: Write the proportion equation
351,496.10 : 526,889.09 = 138,413.54 : x - Step 2: Convert to fraction form
351,496.10/526,889.09 = 138,413.54/x - Step 3: Cross multiply
351,496.10x = 526,889.09 × 138,413.54 - Step 4: Simplify right side
351,496.10x = 72,928,585,797.54 - Step 5: Solve for x
x = 72,928,585,797.54/351,496.10 - Step 6: Final answer
x = 207,480.50
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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.