Finding the Fourth Proportional to 539,764.80, 809,647.20 and 165,739.20
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Solution
The fourth proportional to 539,764.80, 809,647.20 and 165,739.20 is: 248,608.80
Step by Step Solution
- Step 1: Write the proportion equation
539,764.80 : 809,647.20 = 165,739.20 : x - Step 2: Convert to fraction form
539,764.80/809,647.20 = 165,739.20/x - Step 3: Cross multiply
539,764.80x = 809,647.20 × 165,739.20 - Step 4: Simplify right side
539,764.80x = 134,190,279,210.24 - Step 5: Solve for x
x = 134,190,279,210.24/539,764.80 - Step 6: Final answer
x = 248,608.80
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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.