Finding the Fourth Proportional to 257,164.12, 385,807.74 and 107,321.08
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Solution
The fourth proportional to 257,164.12, 385,807.74 and 107,321.08 is: 161,007.31
Step by Step Solution
- Step 1: Write the proportion equation
257,164.12 : 385,807.74 = 107,321.08 : x - Step 2: Convert to fraction form
257,164.12/385,807.74 = 107,321.08/x - Step 3: Cross multiply
257,164.12x = 385,807.74 × 107,321.08 - Step 4: Simplify right side
257,164.12x = 41,405,303,329.16 - Step 5: Solve for x
x = 41,405,303,329.16/257,164.12 - Step 6: Final answer
x = 161,007.31
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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.