Finding the Fourth Proportional to 257,339.30, 385,877.28 and 107,538.68
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Solution
The fourth proportional to 257,339.30, 385,877.28 and 107,538.68 is: 161,253.00
Step by Step Solution
- Step 1: Write the proportion equation
257,339.30 : 385,877.28 = 107,538.68 : x - Step 2: Convert to fraction form
257,339.30/385,877.28 = 107,538.68/x - Step 3: Cross multiply
257,339.30x = 385,877.28 × 107,538.68 - Step 4: Simplify right side
257,339.30x = 41,496,733,333.19 - Step 5: Solve for x
x = 41,496,733,333.19/257,339.30 - Step 6: Final answer
x = 161,253.00
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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.