Finding the Fourth Proportional to 248,203.80, 372,305.70 and 130,105.80
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Solution
The fourth proportional to 248,203.80, 372,305.70 and 130,105.80 is: 195,158.70
Step by Step Solution
- Step 1: Write the proportion equation
248,203.80 : 372,305.70 = 130,105.80 : x - Step 2: Convert to fraction form
248,203.80/372,305.70 = 130,105.80/x - Step 3: Cross multiply
248,203.80x = 372,305.70 × 130,105.80 - Step 4: Simplify right side
248,203.80x = 48,439,130,943.06 - Step 5: Solve for x
x = 48,439,130,943.06/248,203.80 - Step 6: Final answer
x = 195,158.70
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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.