Finding the Fourth Proportional to 198,429.14, 273,837.16 and 107,785.08
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Solution
The fourth proportional to 198,429.14, 273,837.16 and 107,785.08 is: 148,746.09
Step by Step Solution
- Step 1: Write the proportion equation
198,429.14 : 273,837.16 = 107,785.08 : x - Step 2: Convert to fraction form
198,429.14/273,837.16 = 107,785.08/x - Step 3: Cross multiply
198,429.14x = 273,837.16 × 107,785.08 - Step 4: Simplify right side
198,429.14x = 29,515,559,726.01 - Step 5: Solve for x
x = 29,515,559,726.01/198,429.14 - Step 6: Final answer
x = 148,746.09
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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.