Finding the Fourth Proportional to 191,412.09, 264,148.68 and 106,549.20
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Solution
The fourth proportional to 191,412.09, 264,148.68 and 106,549.20 is: 147,037.89
Step by Step Solution
- Step 1: Write the proportion equation
191,412.09 : 264,148.68 = 106,549.20 : x - Step 2: Convert to fraction form
191,412.09/264,148.68 = 106,549.20/x - Step 3: Cross multiply
191,412.09x = 264,148.68 × 106,549.20 - Step 4: Simplify right side
191,412.09x = 28,144,830,535.06 - Step 5: Solve for x
x = 28,144,830,535.06/191,412.09 - Step 6: Final answer
x = 147,037.89
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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.