Finding the Fourth Proportional to 427,329.20, 641,308.80 and 202,688.84
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Solution
The fourth proportional to 427,329.20, 641,308.80 and 202,688.84 is: 304,182.67
Step by Step Solution
- Step 1: Write the proportion equation
427,329.20 : 641,308.80 = 202,688.84 : x - Step 2: Convert to fraction form
427,329.20/641,308.80 = 202,688.84/x - Step 3: Cross multiply
427,329.20x = 641,308.80 × 202,688.84 - Step 4: Simplify right side
427,329.20x = 129,986,136,753.79 - Step 5: Solve for x
x = 129,986,136,753.79/427,329.20 - Step 6: Final answer
x = 304,182.67
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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.