Finding the Fourth Proportional to 455,232.79, 628,221.16 and 251,283.66
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Solution
The fourth proportional to 455,232.79, 628,221.16 and 251,283.66 is: 346,771.39
Step by Step Solution
- Step 1: Write the proportion equation
455,232.79 : 628,221.16 = 251,283.66 : x - Step 2: Convert to fraction form
455,232.79/628,221.16 = 251,283.66/x - Step 3: Cross multiply
455,232.79x = 628,221.16 × 251,283.66 - Step 4: Simplify right side
455,232.79x = 157,861,708,919.05 - Step 5: Solve for x
x = 157,861,708,919.05/455,232.79 - Step 6: Final answer
x = 346,771.39
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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.