Finding the Fourth Proportional to 288,641.42, 398,307.99 and 159,572.15
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Solution
The fourth proportional to 288,641.42, 398,307.99 and 159,572.15 is: 220,200.08
Step by Step Solution
- Step 1: Write the proportion equation
288,641.42 : 398,307.99 = 159,572.15 : x - Step 2: Convert to fraction form
288,641.42/398,307.99 = 159,572.15/x - Step 3: Cross multiply
288,641.42x = 398,307.99 × 159,572.15 - Step 4: Simplify right side
288,641.42x = 63,558,863,322.25 - Step 5: Solve for x
x = 63,558,863,322.25/288,641.42 - Step 6: Final answer
x = 220,200.08
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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.