Finding the Fourth Proportional to 239,288.16, 330,217.68 and 138,744.48
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Solution
The fourth proportional to 239,288.16, 330,217.68 and 138,744.48 is: 191,467.39
Step by Step Solution
- Step 1: Write the proportion equation
239,288.16 : 330,217.68 = 138,744.48 : x - Step 2: Convert to fraction form
239,288.16/330,217.68 = 138,744.48/x - Step 3: Cross multiply
239,288.16x = 330,217.68 × 138,744.48 - Step 4: Simplify right side
239,288.16x = 45,815,880,298.41 - Step 5: Solve for x
x = 45,815,880,298.41/239,288.16 - Step 6: Final answer
x = 191,467.39
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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.