Finding the Fourth Proportional to 318,601.74, 439,666.92 and 175,358.70
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Solution
The fourth proportional to 318,601.74, 439,666.92 and 175,358.70 is: 241,993.09
Step by Step Solution
- Step 1: Write the proportion equation
318,601.74 : 439,666.92 = 175,358.70 : x - Step 2: Convert to fraction form
318,601.74/439,666.92 = 175,358.70/x - Step 3: Cross multiply
318,601.74x = 439,666.92 × 175,358.70 - Step 4: Simplify right side
318,601.74x = 77,099,419,524.20 - Step 5: Solve for x
x = 77,099,419,524.20/318,601.74 - Step 6: Final answer
x = 241,993.09
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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.