Finding the Fourth Proportional to 248,431.80, 372,647.70 and 115,267.80
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Solution
The fourth proportional to 248,431.80, 372,647.70 and 115,267.80 is: 172,901.70
Step by Step Solution
- Step 1: Write the proportion equation
248,431.80 : 372,647.70 = 115,267.80 : x - Step 2: Convert to fraction form
248,431.80/372,647.70 = 115,267.80/x - Step 3: Cross multiply
248,431.80x = 372,647.70 × 115,267.80 - Step 4: Simplify right side
248,431.80x = 42,954,280,554.06 - Step 5: Solve for x
x = 42,954,280,554.06/248,431.80 - Step 6: Final answer
x = 172,901.70
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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.