Finding the Fourth Proportional to 252,283.19, 348,149.53 and 139,105.94
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Solution
The fourth proportional to 252,283.19, 348,149.53 and 139,105.94 is: 191,965.50
Step by Step Solution
- Step 1: Write the proportion equation
252,283.19 : 348,149.53 = 139,105.94 : x - Step 2: Convert to fraction form
252,283.19/348,149.53 = 139,105.94/x - Step 3: Cross multiply
252,283.19x = 348,149.53 × 139,105.94 - Step 4: Simplify right side
252,283.19x = 48,429,667,631.21 - Step 5: Solve for x
x = 48,429,667,631.21/252,283.19 - Step 6: Final answer
x = 191,965.50
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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.