Finding the Fourth Proportional to 257,184.87, 354,902.70 and 142,455.75
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Solution
The fourth proportional to 257,184.87, 354,902.70 and 142,455.75 is: 196,582.06
Step by Step Solution
- Step 1: Write the proportion equation
257,184.87 : 354,902.70 = 142,455.75 : x - Step 2: Convert to fraction form
257,184.87/354,902.70 = 142,455.75/x - Step 3: Cross multiply
257,184.87x = 354,902.70 × 142,455.75 - Step 4: Simplify right side
257,184.87x = 50,557,930,305.53 - Step 5: Solve for x
x = 50,557,930,305.53/257,184.87 - Step 6: Final answer
x = 196,582.06
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.