Finding the Fourth Proportional to 292,556.80, 437,863.20 and 212,366.80
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Solution
The fourth proportional to 292,556.80, 437,863.20 and 212,366.80 is: 317,844.63
Step by Step Solution
- Step 1: Write the proportion equation
292,556.80 : 437,863.20 = 212,366.80 : x - Step 2: Convert to fraction form
292,556.80/437,863.20 = 212,366.80/x - Step 3: Cross multiply
292,556.80x = 437,863.20 × 212,366.80 - Step 4: Simplify right side
292,556.80x = 92,987,606,621.76 - Step 5: Solve for x
x = 92,987,606,621.76/292,556.80 - Step 6: Final answer
x = 317,844.63
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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.