Finding the Fourth Proportional to 288,729.38, 432,986.21 and 99,135.92
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Solution
The fourth proportional to 288,729.38, 432,986.21 and 99,135.92 is: 148,666.85
Step by Step Solution
- Step 1: Write the proportion equation
288,729.38 : 432,986.21 = 99,135.92 : x - Step 2: Convert to fraction form
288,729.38/432,986.21 = 99,135.92/x - Step 3: Cross multiply
288,729.38x = 432,986.21 × 99,135.92 - Step 4: Simplify right side
288,729.38x = 42,924,487,234.21 - Step 5: Solve for x
x = 42,924,487,234.21/288,729.38 - Step 6: Final answer
x = 148,666.85
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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.