Finding the Fourth Proportional to 415,368.70, 623,053.06 and 131,088.06
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Solution
The fourth proportional to 415,368.70, 623,053.06 and 131,088.06 is: 196,632.09
Step by Step Solution
- Step 1: Write the proportion equation
415,368.70 : 623,053.06 = 131,088.06 : x - Step 2: Convert to fraction form
415,368.70/623,053.06 = 131,088.06/x - Step 3: Cross multiply
415,368.70x = 623,053.06 × 131,088.06 - Step 4: Simplify right side
415,368.70x = 81,674,816,912.46 - Step 5: Solve for x
x = 81,674,816,912.46/415,368.70 - Step 6: Final answer
x = 196,632.09
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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.