Finding the Fourth Proportional to 289,041.80, 433,562.70 and 275,263.70
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Solution
The fourth proportional to 289,041.80, 433,562.70 and 275,263.70 is: 412,895.55
Step by Step Solution
- Step 1: Write the proportion equation
289,041.80 : 433,562.70 = 275,263.70 : x - Step 2: Convert to fraction form
289,041.80/433,562.70 = 275,263.70/x - Step 3: Cross multiply
289,041.80x = 433,562.70 × 275,263.70 - Step 4: Simplify right side
289,041.80x = 119,344,072,983.99 - Step 5: Solve for x
x = 119,344,072,983.99/289,041.80 - Step 6: Final answer
x = 412,895.55
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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.