Finding the Fourth Proportional to 369,951.70, 554,927.55 and 212,487.70
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Solution
The fourth proportional to 369,951.70, 554,927.55 and 212,487.70 is: 318,731.55
Step by Step Solution
- Step 1: Write the proportion equation
369,951.70 : 554,927.55 = 212,487.70 : x - Step 2: Convert to fraction form
369,951.70/554,927.55 = 212,487.70/x - Step 3: Cross multiply
369,951.70x = 554,927.55 × 212,487.70 - Step 4: Simplify right side
369,951.70x = 117,915,278,766.14 - Step 5: Solve for x
x = 117,915,278,766.14/369,951.70 - Step 6: Final answer
x = 318,731.55
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1.5x scale
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.