Finding the Fourth Proportional to 399,029.57, 550,643.69 and 217,736.99
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Solution
The fourth proportional to 399,029.57, 550,643.69 and 217,736.99 is: 300,467.70
Step by Step Solution
- Step 1: Write the proportion equation
399,029.57 : 550,643.69 = 217,736.99 : x - Step 2: Convert to fraction form
399,029.57/550,643.69 = 217,736.99/x - Step 3: Cross multiply
399,029.57x = 550,643.69 × 217,736.99 - Step 4: Simplify right side
399,029.57x = 119,895,497,414.22 - Step 5: Solve for x
x = 119,895,497,414.22/399,029.57 - Step 6: Final answer
x = 300,467.70
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.