Finding the Fourth Proportional to 394,177.96, 543,966.08 and 224,412.08
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Solution
The fourth proportional to 394,177.96, 543,966.08 and 224,412.08 is: 309,688.95
Step by Step Solution
- Step 1: Write the proportion equation
394,177.96 : 543,966.08 = 224,412.08 : x - Step 2: Convert to fraction form
394,177.96/543,966.08 = 224,412.08/x - Step 3: Cross multiply
394,177.96x = 543,966.08 × 224,412.08 - Step 4: Simplify right side
394,177.96x = 122,072,559,462.25 - Step 5: Solve for x
x = 122,072,559,462.25/394,177.96 - Step 6: Final answer
x = 309,688.95
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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.