Finding the Fourth Proportional to 256,858.74, 354,536.30 and 149,449.52
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Solution
The fourth proportional to 256,858.74, 354,536.30 and 149,449.52 is: 206,281.79
Step by Step Solution
- Step 1: Write the proportion equation
256,858.74 : 354,536.30 = 149,449.52 : x - Step 2: Convert to fraction form
256,858.74/354,536.30 = 149,449.52/x - Step 3: Cross multiply
256,858.74x = 354,536.30 × 149,449.52 - Step 4: Simplify right side
256,858.74x = 52,985,281,117.54 - Step 5: Solve for x
x = 52,985,281,117.54/256,858.74 - Step 6: Final answer
x = 206,281.79
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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.