Finding the Fourth Proportional to 245,276.88, 338,480.67 and 137,845.98
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Solution
The fourth proportional to 245,276.88, 338,480.67 and 137,845.98 is: 190,226.65
Step by Step Solution
- Step 1: Write the proportion equation
245,276.88 : 338,480.67 = 137,845.98 : x - Step 2: Convert to fraction form
245,276.88/338,480.67 = 137,845.98/x - Step 3: Cross multiply
245,276.88x = 338,480.67 × 137,845.98 - Step 4: Simplify right side
245,276.88x = 46,658,199,667.21 - Step 5: Solve for x
x = 46,658,199,667.21/245,276.88 - Step 6: Final answer
x = 190,226.65
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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.