Finding the Fourth Proportional to 372,319.81, 513,803.57 and 202,555.15
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Solution
The fourth proportional to 372,319.81, 513,803.57 and 202,555.15 is: 279,527.32
Step by Step Solution
- Step 1: Write the proportion equation
372,319.81 : 513,803.57 = 202,555.15 : x - Step 2: Convert to fraction form
372,319.81/513,803.57 = 202,555.15/x - Step 3: Cross multiply
372,319.81x = 513,803.57 × 202,555.15 - Step 4: Simplify right side
372,319.81x = 104,073,556,894.60 - Step 5: Solve for x
x = 104,073,556,894.60/372,319.81 - Step 6: Final answer
x = 279,527.32
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.