Finding the Fourth Proportional to 415,908.97, 623,973.99 and 131,604.58
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Solution
The fourth proportional to 415,908.97, 623,973.99 and 131,604.58 is: 197,441.85
Step by Step Solution
- Step 1: Write the proportion equation
415,908.97 : 623,973.99 = 131,604.58 : x - Step 2: Convert to fraction form
415,908.97/623,973.99 = 131,604.58/x - Step 3: Cross multiply
415,908.97x = 623,973.99 × 131,604.58 - Step 4: Simplify right side
415,908.97x = 82,117,834,884.87 - Step 5: Solve for x
x = 82,117,834,884.87/415,908.97 - Step 6: Final answer
x = 197,441.85
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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.