Finding the Fourth Proportional to 245,555.64, 338,863.34 and 138,125.67
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Solution
The fourth proportional to 245,555.64, 338,863.34 and 138,125.67 is: 190,611.48
Step by Step Solution
- Step 1: Write the proportion equation
245,555.64 : 338,863.34 = 138,125.67 : x - Step 2: Convert to fraction form
245,555.64/338,863.34 = 138,125.67/x - Step 3: Cross multiply
245,555.64x = 338,863.34 × 138,125.67 - Step 4: Simplify right side
245,555.64x = 46,805,725,185.31 - Step 5: Solve for x
x = 46,805,725,185.31/245,555.64 - Step 6: Final answer
x = 190,611.48
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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.