Finding the Fourth Proportional to 257,021.40, 385,534.98 and 107,284.44
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Solution
The fourth proportional to 257,021.40, 385,534.98 and 107,284.44 is: 160,927.86
Step by Step Solution
- Step 1: Write the proportion equation
257,021.40 : 385,534.98 = 107,284.44 : x - Step 2: Convert to fraction form
257,021.40/385,534.98 = 107,284.44/x - Step 3: Cross multiply
257,021.40x = 385,534.98 × 107,284.44 - Step 4: Simplify right side
257,021.40x = 41,361,904,429.71 - Step 5: Solve for x
x = 41,361,904,429.71/257,021.40 - Step 6: Final answer
x = 160,927.86
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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.