Finding the Fourth Proportional to 256,848.87, 354,432.18 and 143,649.75
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Solution
The fourth proportional to 256,848.87, 354,432.18 and 143,649.75 is: 198,225.88
Step by Step Solution
- Step 1: Write the proportion equation
256,848.87 : 354,432.18 = 143,649.75 : x - Step 2: Convert to fraction form
256,848.87/354,432.18 = 143,649.75/x - Step 3: Cross multiply
256,848.87x = 354,432.18 × 143,649.75 - Step 4: Simplify right side
256,848.87x = 50,914,094,048.96 - Step 5: Solve for x
x = 50,914,094,048.96/256,848.87 - Step 6: Final answer
x = 198,225.88
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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.