Finding the Fourth Proportional to 257,140.23, 385,771.94 and 107,297.18
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Solution
The fourth proportional to 257,140.23, 385,771.94 and 107,297.18 is: 160,971.47
Step by Step Solution
- Step 1: Write the proportion equation
257,140.23 : 385,771.94 = 107,297.18 : x - Step 2: Convert to fraction form
257,140.23/385,771.94 = 107,297.18/x - Step 3: Cross multiply
257,140.23x = 385,771.94 × 107,297.18 - Step 4: Simplify right side
257,140.23x = 41,392,241,285.13 - Step 5: Solve for x
x = 41,392,241,285.13/257,140.23 - Step 6: Final answer
x = 160,971.47
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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.