Finding the Fourth Proportional to 289,143.70, 433,909.95 and 162,783.70
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Solution
The fourth proportional to 289,143.70, 433,909.95 and 162,783.70 is: 244,284.99
Step by Step Solution
- Step 1: Write the proportion equation
289,143.70 : 433,909.95 = 162,783.70 : x - Step 2: Convert to fraction form
289,143.70/433,909.95 = 162,783.70/x - Step 3: Cross multiply
289,143.70x = 433,909.95 × 162,783.70 - Step 4: Simplify right side
289,143.70x = 70,633,467,127.82 - Step 5: Solve for x
x = 70,633,467,127.82/289,143.70 - Step 6: Final answer
x = 244,284.99
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1.5x scale
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.