Finding the Fourth Proportional to 311,801.68, 429,999.28 and 204,332.68
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Solution
The fourth proportional to 311,801.68, 429,999.28 and 204,332.68 is: 281,790.99
Step by Step Solution
- Step 1: Write the proportion equation
311,801.68 : 429,999.28 = 204,332.68 : x - Step 2: Convert to fraction form
311,801.68/429,999.28 = 204,332.68/x - Step 3: Cross multiply
311,801.68x = 429,999.28 × 204,332.68 - Step 4: Simplify right side
311,801.68x = 87,862,905,280.47 - Step 5: Solve for x
x = 87,862,905,280.47/311,801.68 - Step 6: Final answer
x = 281,790.99
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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.