Finding the Fourth Proportional to 207,605.36, 286,508.34 and 120,408.19
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Solution
The fourth proportional to 207,605.36, 286,508.34 and 120,408.19 is: 166,170.80
Step by Step Solution
- Step 1: Write the proportion equation
207,605.36 : 286,508.34 = 120,408.19 : x - Step 2: Convert to fraction form
207,605.36/286,508.34 = 120,408.19/x - Step 3: Cross multiply
207,605.36x = 286,508.34 × 120,408.19 - Step 4: Simplify right side
207,605.36x = 34,497,949,923.03 - Step 5: Solve for x
x = 34,497,949,923.03/207,605.36 - Step 6: Final answer
x = 166,170.80
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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.