Finding the Fourth Proportional to 192,219.12, 288,326.52 and 86,965.20
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Solution
The fourth proportional to 192,219.12, 288,326.52 and 86,965.20 is: 130,446.82
Step by Step Solution
- Step 1: Write the proportion equation
192,219.12 : 288,326.52 = 86,965.20 : x - Step 2: Convert to fraction form
192,219.12/288,326.52 = 86,965.20/x - Step 3: Cross multiply
192,219.12x = 288,326.52 × 86,965.20 - Step 4: Simplify right side
192,219.12x = 25,074,373,477.10 - Step 5: Solve for x
x = 25,074,373,477.10/192,219.12 - Step 6: Final answer
x = 130,446.82
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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.