Finding the Fourth Proportional to 261,817.30, 392,614.17 and 99,605.08
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Solution
The fourth proportional to 261,817.30, 392,614.17 and 99,605.08 is: 149,365.09
Step by Step Solution
- Step 1: Write the proportion equation
261,817.30 : 392,614.17 = 99,605.08 : x - Step 2: Convert to fraction form
261,817.30/392,614.17 = 99,605.08/x - Step 3: Cross multiply
261,817.30x = 392,614.17 × 99,605.08 - Step 4: Simplify right side
261,817.30x = 39,106,365,811.98 - Step 5: Solve for x
x = 39,106,365,811.98/261,817.30 - Step 6: Final answer
x = 149,365.09
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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.