Finding the Fourth Proportional to 239,819.60, 330,952.20 and 132,387.68
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Solution
The fourth proportional to 239,819.60, 330,952.20 and 132,387.68 is: 182,695.63
Step by Step Solution
- Step 1: Write the proportion equation
239,819.60 : 330,952.20 = 132,387.68 : x - Step 2: Convert to fraction form
239,819.60/330,952.20 = 132,387.68/x - Step 3: Cross multiply
239,819.60x = 330,952.20 × 132,387.68 - Step 4: Simplify right side
239,819.60x = 43,813,993,948.90 - Step 5: Solve for x
x = 43,813,993,948.90/239,819.60 - Step 6: Final answer
x = 182,695.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.