Finding the Fourth Proportional to 288,621.21, 398,039.41 and 181,201.26
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Solution
The fourth proportional to 288,621.21, 398,039.41 and 181,201.26 is: 249,895.85
Step by Step Solution
- Step 1: Write the proportion equation
288,621.21 : 398,039.41 = 181,201.26 : x - Step 2: Convert to fraction form
288,621.21/398,039.41 = 181,201.26/x - Step 3: Cross multiply
288,621.21x = 398,039.41 × 181,201.26 - Step 4: Simplify right side
288,621.21x = 72,125,242,621.66 - Step 5: Solve for x
x = 72,125,242,621.66/288,621.21 - Step 6: Final answer
x = 249,895.85
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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.