Finding the Fourth Proportional to 197,860.13, 273,052.05 and 112,985.09
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Solution
The fourth proportional to 197,860.13, 273,052.05 and 112,985.09 is: 155,922.32
Step by Step Solution
- Step 1: Write the proportion equation
197,860.13 : 273,052.05 = 112,985.09 : x - Step 2: Convert to fraction form
197,860.13/273,052.05 = 112,985.09/x - Step 3: Cross multiply
197,860.13x = 273,052.05 × 112,985.09 - Step 4: Simplify right side
197,860.13x = 30,850,810,443.93 - Step 5: Solve for x
x = 30,850,810,443.93/197,860.13 - Step 6: Final answer
x = 155,922.32
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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.