Finding the Fourth Proportional to 396,378.24, 547,099.16 and 243,453.08
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Solution
The fourth proportional to 396,378.24, 547,099.16 and 243,453.08 is: 336,024.93
Step by Step Solution
- Step 1: Write the proportion equation
396,378.24 : 547,099.16 = 243,453.08 : x - Step 2: Convert to fraction form
396,378.24/547,099.16 = 243,453.08/x - Step 3: Cross multiply
396,378.24x = 547,099.16 × 243,453.08 - Step 4: Simplify right side
396,378.24x = 133,192,971,614.65 - Step 5: Solve for x
x = 133,192,971,614.65/396,378.24 - Step 6: Final answer
x = 336,024.93
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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.