Finding the Fourth Proportional to 286,197.77, 429,369.15 and 202,122.20
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Solution
The fourth proportional to 286,197.77, 429,369.15 and 202,122.20 is: 303,234.50
Step by Step Solution
- Step 1: Write the proportion equation
286,197.77 : 429,369.15 = 202,122.20 : x - Step 2: Convert to fraction form
286,197.77/429,369.15 = 202,122.20/x - Step 3: Cross multiply
286,197.77x = 429,369.15 × 202,122.20 - Step 4: Simplify right side
286,197.77x = 86,785,037,210.13 - Step 5: Solve for x
x = 86,785,037,210.13/286,197.77 - Step 6: Final answer
x = 303,234.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.