Finding the Fourth Proportional to 372,279.48, 513,629.76 and 211,121.88
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Solution
The fourth proportional to 372,279.48, 513,629.76 and 211,121.88 is: 291,282.45
Step by Step Solution
- Step 1: Write the proportion equation
372,279.48 : 513,629.76 = 211,121.88 : x - Step 2: Convert to fraction form
372,279.48/513,629.76 = 211,121.88/x - Step 3: Cross multiply
372,279.48x = 513,629.76 × 211,121.88 - Step 4: Simplify right side
372,279.48x = 108,438,480,555.15 - Step 5: Solve for x
x = 108,438,480,555.15/372,279.48 - Step 6: Final answer
x = 291,282.45
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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.