Finding the Fourth Proportional to 323,931.08, 447,021.83 and 178,738.17
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Solution
The fourth proportional to 323,931.08, 447,021.83 and 178,738.17 is: 246,656.99
Step by Step Solution
- Step 1: Write the proportion equation
323,931.08 : 447,021.83 = 178,738.17 : x - Step 2: Convert to fraction form
323,931.08/447,021.83 = 178,738.17/x - Step 3: Cross multiply
323,931.08x = 447,021.83 × 178,738.17 - Step 4: Simplify right side
323,931.08x = 79,899,862,950.56 - Step 5: Solve for x
x = 79,899,862,950.56/323,931.08 - Step 6: Final answer
x = 246,656.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.