Finding the Fourth Proportional to 288,015.68, 431,973.68 and 130,207.44
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Solution
The fourth proportional to 288,015.68, 431,973.68 and 130,207.44 is: 195,288.63
Step by Step Solution
- Step 1: Write the proportion equation
288,015.68 : 431,973.68 = 130,207.44 : x - Step 2: Convert to fraction form
288,015.68/431,973.68 = 130,207.44/x - Step 3: Cross multiply
288,015.68x = 431,973.68 × 130,207.44 - Step 4: Simplify right side
288,015.68x = 56,246,187,020.18 - Step 5: Solve for x
x = 56,246,187,020.18/288,015.68 - Step 6: Final answer
x = 195,288.63
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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.