Finding the Fourth Proportional to 328,536.70, 492,768.60 and 91,903.30
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Solution
The fourth proportional to 328,536.70, 492,768.60 and 91,903.30 is: 137,844.75
Step by Step Solution
- Step 1: Write the proportion equation
328,536.70 : 492,768.60 = 91,903.30 : x - Step 2: Convert to fraction form
328,536.70/492,768.60 = 91,903.30/x - Step 3: Cross multiply
328,536.70x = 492,768.60 × 91,903.30 - Step 4: Simplify right side
328,536.70x = 45,287,060,476.38 - Step 5: Solve for x
x = 45,287,060,476.38/328,536.70 - Step 6: Final answer
x = 137,844.75
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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.