Finding the Fourth Proportional to 288,911.70, 433,367.55 and 131,447.70
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Solution
The fourth proportional to 288,911.70, 433,367.55 and 131,447.70 is: 197,171.55
Step by Step Solution
- Step 1: Write the proportion equation
288,911.70 : 433,367.55 = 131,447.70 : x - Step 2: Convert to fraction form
288,911.70/433,367.55 = 131,447.70/x - Step 3: Cross multiply
288,911.70x = 433,367.55 × 131,447.70 - Step 4: Simplify right side
288,911.70x = 56,965,167,702.14 - Step 5: Solve for x
x = 56,965,167,702.14/288,911.70 - Step 6: Final answer
x = 197,171.55
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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.