Finding the Fourth Proportional to 288,070.65, 431,861.97 and 119,485.76
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Solution
The fourth proportional to 288,070.65, 431,861.97 and 119,485.76 is: 179,127.42
Step by Step Solution
- Step 1: Write the proportion equation
288,070.65 : 431,861.97 = 119,485.76 : x - Step 2: Convert to fraction form
288,070.65/431,861.97 = 119,485.76/x - Step 3: Cross multiply
288,070.65x = 431,861.97 × 119,485.76 - Step 4: Simplify right side
288,070.65x = 51,601,353,541.24 - Step 5: Solve for x
x = 51,601,353,541.24/288,070.65 - Step 6: Final answer
x = 179,127.42
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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.