Finding the Fourth Proportional to 257,135.20, 385,951.80 and 124,108.88
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Solution
The fourth proportional to 257,135.20, 385,951.80 and 124,108.88 is: 186,283.50
Step by Step Solution
- Step 1: Write the proportion equation
257,135.20 : 385,951.80 = 124,108.88 : x - Step 2: Convert to fraction form
257,135.20/385,951.80 = 124,108.88/x - Step 3: Cross multiply
257,135.20x = 385,951.80 × 124,108.88 - Step 4: Simplify right side
257,135.20x = 47,900,045,631.98 - Step 5: Solve for x
x = 47,900,045,631.98/257,135.20 - Step 6: Final answer
x = 186,283.50
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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.