Finding the Fourth Proportional to 288,988.07, 433,546.68 and 139,354.21
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Solution
The fourth proportional to 288,988.07, 433,546.68 and 139,354.21 is: 209,062.45
Step by Step Solution
- Step 1: Write the proportion equation
288,988.07 : 433,546.68 = 139,354.21 : x - Step 2: Convert to fraction form
288,988.07/433,546.68 = 139,354.21/x - Step 3: Cross multiply
288,988.07x = 433,546.68 × 139,354.21 - Step 4: Simplify right side
288,988.07x = 60,416,555,089.52 - Step 5: Solve for x
x = 60,416,555,089.52/288,988.07 - Step 6: Final answer
x = 209,062.45
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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.