Finding the Fourth Proportional to 285,038.44, 392,873.67 and 216,105.09
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Solution
The fourth proportional to 285,038.44, 392,873.67 and 216,105.09 is: 297,861.58
Step by Step Solution
- Step 1: Write the proportion equation
285,038.44 : 392,873.67 = 216,105.09 : x - Step 2: Convert to fraction form
285,038.44/392,873.67 = 216,105.09/x - Step 3: Cross multiply
285,038.44x = 392,873.67 × 216,105.09 - Step 4: Simplify right side
285,038.44x = 84,901,999,813.98 - Step 5: Solve for x
x = 84,901,999,813.98/285,038.44 - Step 6: Final answer
x = 297,861.58
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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.