Finding the Fourth Proportional to 245,125.64, 338,236.56 and 137,675.09
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Solution
The fourth proportional to 245,125.64, 338,236.56 and 137,675.09 is: 189,970.94
Step by Step Solution
- Step 1: Write the proportion equation
245,125.64 : 338,236.56 = 137,675.09 : x - Step 2: Convert to fraction form
245,125.64/338,236.56 = 137,675.09/x - Step 3: Cross multiply
245,125.64x = 338,236.56 × 137,675.09 - Step 4: Simplify right side
245,125.64x = 46,566,749,684.88 - Step 5: Solve for x
x = 46,566,749,684.88/245,125.64 - Step 6: Final answer
x = 189,970.94
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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.