Finding the Fourth Proportional to 239,421.09, 330,403.37 and 131,994.98
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Solution
The fourth proportional to 239,421.09, 330,403.37 and 131,994.98 is: 182,154.31
Step by Step Solution
- Step 1: Write the proportion equation
239,421.09 : 330,403.37 = 131,994.98 : x - Step 2: Convert to fraction form
239,421.09/330,403.37 = 131,994.98/x - Step 3: Cross multiply
239,421.09x = 330,403.37 × 131,994.98 - Step 4: Simplify right side
239,421.09x = 43,611,583,903.09 - Step 5: Solve for x
x = 43,611,583,903.09/239,421.09 - Step 6: Final answer
x = 182,154.31
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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.