Finding the Fourth Proportional to 197,767.13, 272,918.64 and 107,123.12
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Solution
The fourth proportional to 197,767.13, 272,918.64 and 107,123.12 is: 147,829.90
Step by Step Solution
- Step 1: Write the proportion equation
197,767.13 : 272,918.64 = 107,123.12 : x - Step 2: Convert to fraction form
197,767.13/272,918.64 = 107,123.12/x - Step 3: Cross multiply
197,767.13x = 272,918.64 × 107,123.12 - Step 4: Simplify right side
197,767.13x = 29,235,894,858.36 - Step 5: Solve for x
x = 29,235,894,858.36/197,767.13 - Step 6: Final answer
x = 147,829.90
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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.