Finding the Fourth Proportional to 281,523.12, 388,354.68 and 174,058.80
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Solution
The fourth proportional to 281,523.12, 388,354.68 and 174,058.80 is: 240,110.12
Step by Step Solution
- Step 1: Write the proportion equation
281,523.12 : 388,354.68 = 174,058.80 : x - Step 2: Convert to fraction form
281,523.12/388,354.68 = 174,058.80/x - Step 3: Cross multiply
281,523.12x = 388,354.68 × 174,058.80 - Step 4: Simplify right side
281,523.12x = 67,596,549,575.18 - Step 5: Solve for x
x = 67,596,549,575.18/281,523.12 - Step 6: Final answer
x = 240,110.12
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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.