Finding the Fourth Proportional to 189,768.99, 284,423.30 and 139,381.88
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Solution
The fourth proportional to 189,768.99, 284,423.30 and 139,381.88 is: 208,903.75
Step by Step Solution
- Step 1: Write the proportion equation
189,768.99 : 284,423.30 = 139,381.88 : x - Step 2: Convert to fraction form
189,768.99/284,423.30 = 139,381.88/x - Step 3: Cross multiply
189,768.99x = 284,423.30 × 139,381.88 - Step 4: Simplify right side
189,768.99x = 39,643,454,269.80 - Step 5: Solve for x
x = 39,643,454,269.80/189,768.99 - Step 6: Final answer
x = 208,903.75
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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.