Finding the Fourth Proportional to 243,845.08, 336,490.40 and 136,396.70
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Solution
The fourth proportional to 243,845.08, 336,490.40 and 136,396.70 is: 188,218.60
Step by Step Solution
- Step 1: Write the proportion equation
243,845.08 : 336,490.40 = 136,396.70 : x - Step 2: Convert to fraction form
243,845.08/336,490.40 = 136,396.70/x - Step 3: Cross multiply
243,845.08x = 336,490.40 × 136,396.70 - Step 4: Simplify right side
243,845.08x = 45,896,180,141.68 - Step 5: Solve for x
x = 45,896,180,141.68/243,845.08 - Step 6: Final answer
x = 188,218.60
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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.