Finding the Fourth Proportional to 239,417.24, 330,380.76 and 131,988.20
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Solution
The fourth proportional to 239,417.24, 330,380.76 and 131,988.20 is: 182,135.43
Step by Step Solution
- Step 1: Write the proportion equation
239,417.24 : 330,380.76 = 131,988.20 : x - Step 2: Convert to fraction form
239,417.24/330,380.76 = 131,988.20/x - Step 3: Cross multiply
239,417.24x = 330,380.76 × 131,988.20 - Step 4: Simplify right side
239,417.24x = 43,606,361,827.03 - Step 5: Solve for x
x = 43,606,361,827.03/239,417.24 - Step 6: Final answer
x = 182,135.43
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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.