Finding the Fourth Proportional to 207,999.05, 287,013.99 and 117,349.72
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Solution
The fourth proportional to 207,999.05, 287,013.99 and 117,349.72 is: 161,928.68
Step by Step Solution
- Step 1: Write the proportion equation
207,999.05 : 287,013.99 = 117,349.72 : x - Step 2: Convert to fraction form
207,999.05/287,013.99 = 117,349.72/x - Step 3: Cross multiply
207,999.05x = 287,013.99 × 117,349.72 - Step 4: Simplify right side
207,999.05x = 33,681,011,501.32 - Step 5: Solve for x
x = 33,681,011,501.32/207,999.05 - Step 6: Final answer
x = 161,928.68
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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.