Finding the Fourth Proportional to 490,455.70, 735,136.80 and 190,836.70
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Solution
The fourth proportional to 490,455.70, 735,136.80 and 190,836.70 is: 286,042.31
Step by Step Solution
- Step 1: Write the proportion equation
490,455.70 : 735,136.80 = 190,836.70 : x - Step 2: Convert to fraction form
490,455.70/735,136.80 = 190,836.70/x - Step 3: Cross multiply
490,455.70x = 735,136.80 × 190,836.70 - Step 4: Simplify right side
490,455.70x = 140,291,080,960.56 - Step 5: Solve for x
x = 140,291,080,960.56/490,455.70 - Step 6: Final answer
x = 286,042.31
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.