Finding the Fourth Proportional to 257,455.15, 385,679.97 and 122,326.92
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Solution
The fourth proportional to 257,455.15, 385,679.97 and 122,326.92 is: 183,251.50
Step by Step Solution
- Step 1: Write the proportion equation
257,455.15 : 385,679.97 = 122,326.92 : x - Step 2: Convert to fraction form
257,455.15/385,679.97 = 122,326.92/x - Step 3: Cross multiply
257,455.15x = 385,679.97 × 122,326.92 - Step 4: Simplify right side
257,455.15x = 47,179,042,835.79 - Step 5: Solve for x
x = 47,179,042,835.79/257,455.15 - Step 6: Final answer
x = 183,251.50
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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.