Finding the Fourth Proportional to 369,739.19, 554,608.79 and 120,421.19
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Solution
The fourth proportional to 369,739.19, 554,608.79 and 120,421.19 is: 180,631.79
Step by Step Solution
- Step 1: Write the proportion equation
369,739.19 : 554,608.79 = 120,421.19 : x - Step 2: Convert to fraction form
369,739.19/554,608.79 = 120,421.19/x - Step 3: Cross multiply
369,739.19x = 554,608.79 × 120,421.19 - Step 4: Simplify right side
369,739.19x = 66,786,650,476.26 - Step 5: Solve for x
x = 66,786,650,476.26/369,739.19 - Step 6: Final answer
x = 180,631.79
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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.