Finding the Fourth Proportional to 509,211.09, 763,817.64 and 189,433.08
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Solution
The fourth proportional to 509,211.09, 763,817.64 and 189,433.08 is: 284,149.99
Step by Step Solution
- Step 1: Write the proportion equation
509,211.09 : 763,817.64 = 189,433.08 : x - Step 2: Convert to fraction form
509,211.09/763,817.64 = 189,433.08/x - Step 3: Cross multiply
509,211.09x = 763,817.64 × 189,433.08 - Step 4: Simplify right side
509,211.09x = 144,692,328,103.53 - Step 5: Solve for x
x = 144,692,328,103.53/509,211.09 - Step 6: Final answer
x = 284,149.99
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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.