Finding the Fourth Proportional to 275,467.80, 413,201.70 and 97,980.60
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Solution
The fourth proportional to 275,467.80, 413,201.70 and 97,980.60 is: 146,970.90
Step by Step Solution
- Step 1: Write the proportion equation
275,467.80 : 413,201.70 = 97,980.60 : x - Step 2: Convert to fraction form
275,467.80/413,201.70 = 97,980.60/x - Step 3: Cross multiply
275,467.80x = 413,201.70 × 97,980.60 - Step 4: Simplify right side
275,467.80x = 40,485,750,487.02 - Step 5: Solve for x
x = 40,485,750,487.02/275,467.80 - Step 6: Final answer
x = 146,970.90
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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.