Finding the Fourth Proportional to 396,189.99, 546,738.95 and 214,901.46
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Solution
The fourth proportional to 396,189.99, 546,738.95 and 214,901.46 is: 296,562.26
Step by Step Solution
- Step 1: Write the proportion equation
396,189.99 : 546,738.95 = 214,901.46 : x - Step 2: Convert to fraction form
396,189.99/546,738.95 = 214,901.46/x - Step 3: Cross multiply
396,189.99x = 546,738.95 × 214,901.46 - Step 4: Simplify right side
396,189.99x = 117,494,999,131.12 - Step 5: Solve for x
x = 117,494,999,131.12/396,189.99 - Step 6: Final answer
x = 296,562.26
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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.