Finding the Fourth Proportional to 288,211.14, 397,738.08 and 180,785.70
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Solution
The fourth proportional to 288,211.14, 397,738.08 and 180,785.70 is: 249,488.47
Step by Step Solution
- Step 1: Write the proportion equation
288,211.14 : 397,738.08 = 180,785.70 : x - Step 2: Convert to fraction form
288,211.14/397,738.08 = 180,785.70/x - Step 3: Cross multiply
288,211.14x = 397,738.08 × 180,785.70 - Step 4: Simplify right side
288,211.14x = 71,905,357,209.46 - Step 5: Solve for x
x = 71,905,357,209.46/288,211.14 - Step 6: Final answer
x = 249,488.47
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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.