Finding the Fourth Proportional to 252,673.09, 378,681.85 and 102,738.85
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Solution
The fourth proportional to 252,673.09, 378,681.85 and 102,738.85 is: 153,974.99
Step by Step Solution
- Step 1: Write the proportion equation
252,673.09 : 378,681.85 = 102,738.85 : x - Step 2: Convert to fraction form
252,673.09/378,681.85 = 102,738.85/x - Step 3: Cross multiply
252,673.09x = 378,681.85 × 102,738.85 - Step 4: Simplify right side
252,673.09x = 38,905,336,966.59 - Step 5: Solve for x
x = 38,905,336,966.59/252,673.09 - Step 6: Final answer
x = 153,974.99
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1.5x scale
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.