Finding the Fourth Proportional to 289,429.14, 433,911.89 and 137,549.99
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Solution
The fourth proportional to 289,429.14, 433,911.89 and 137,549.99 is: 206,214.81
Step by Step Solution
- Step 1: Write the proportion equation
289,429.14 : 433,911.89 = 137,549.99 : x - Step 2: Convert to fraction form
289,429.14/433,911.89 = 137,549.99/x - Step 3: Cross multiply
289,429.14x = 433,911.89 × 137,549.99 - Step 4: Simplify right side
289,429.14x = 59,684,573,273.07 - Step 5: Solve for x
x = 59,684,573,273.07/289,429.14 - Step 6: Final answer
x = 206,214.81
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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.