Finding the Fourth Proportional to 252,623.81, 348,620.14 and 139,445.75
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Solution
The fourth proportional to 252,623.81, 348,620.14 and 139,445.75 is: 192,434.74
Step by Step Solution
- Step 1: Write the proportion equation
252,623.81 : 348,620.14 = 139,445.75 : x - Step 2: Convert to fraction form
252,623.81/348,620.14 = 139,445.75/x - Step 3: Cross multiply
252,623.81x = 348,620.14 × 139,445.75 - Step 4: Simplify right side
252,623.81x = 48,613,596,887.41 - Step 5: Solve for x
x = 48,613,596,887.41/252,623.81 - Step 6: Final answer
x = 192,434.74
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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.