Finding the Fourth Proportional to 207,321.12, 286,101.36 and 117,897.12
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Solution
The fourth proportional to 207,321.12, 286,101.36 and 117,897.12 is: 162,697.01
Step by Step Solution
- Step 1: Write the proportion equation
207,321.12 : 286,101.36 = 117,897.12 : x - Step 2: Convert to fraction form
207,321.12/286,101.36 = 117,897.12/x - Step 3: Cross multiply
207,321.12x = 286,101.36 × 117,897.12 - Step 4: Simplify right side
207,321.12x = 33,730,526,372.08 - Step 5: Solve for x
x = 33,730,526,372.08/207,321.12 - Step 6: Final answer
x = 162,697.01
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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.