Finding the Fourth Proportional to 257,917.80, 386,876.70 and 244,139.70
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Solution
The fourth proportional to 257,917.80, 386,876.70 and 244,139.70 is: 366,209.55
Step by Step Solution
- Step 1: Write the proportion equation
257,917.80 : 386,876.70 = 244,139.70 : x - Step 2: Convert to fraction form
257,917.80/386,876.70 = 244,139.70/x - Step 3: Cross multiply
257,917.80x = 386,876.70 × 244,139.70 - Step 4: Simplify right side
257,917.80x = 94,451,961,474.99 - Step 5: Solve for x
x = 94,451,961,474.99/257,917.80 - Step 6: Final answer
x = 366,209.55
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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.