Finding the Fourth Proportional to 288,973.62, 398,799.09 and 161,641.62
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Solution
The fourth proportional to 288,973.62, 398,799.09 and 161,641.62 is: 223,074.10
Step by Step Solution
- Step 1: Write the proportion equation
288,973.62 : 398,799.09 = 161,641.62 : x - Step 2: Convert to fraction form
288,973.62/398,799.09 = 161,641.62/x - Step 3: Cross multiply
288,973.62x = 398,799.09 × 161,641.62 - Step 4: Simplify right side
288,973.62x = 64,462,530,962.13 - Step 5: Solve for x
x = 64,462,530,962.13/288,973.62 - Step 6: Final answer
x = 223,074.10
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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.