Finding the Fourth Proportional to 252,165.60, 347,986.80 and 138,988.08
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Solution
The fourth proportional to 252,165.60, 347,986.80 and 138,988.08 is: 191,802.60
Step by Step Solution
- Step 1: Write the proportion equation
252,165.60 : 347,986.80 = 138,988.08 : x - Step 2: Convert to fraction form
252,165.60/347,986.80 = 138,988.08/x - Step 3: Cross multiply
252,165.60x = 347,986.80 × 138,988.08 - Step 4: Simplify right side
252,165.60x = 48,366,017,197.34 - Step 5: Solve for x
x = 48,366,017,197.34/252,165.60 - Step 6: Final answer
x = 191,802.60
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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.