Finding the Fourth Proportional to 276,905.19, 382,129.50 and 149,580.78
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Solution
The fourth proportional to 276,905.19, 382,129.50 and 149,580.78 is: 206,421.66
Step by Step Solution
- Step 1: Write the proportion equation
276,905.19 : 382,129.50 = 149,580.78 : x - Step 2: Convert to fraction form
276,905.19/382,129.50 = 149,580.78/x - Step 3: Cross multiply
276,905.19x = 382,129.50 × 149,580.78 - Step 4: Simplify right side
276,905.19x = 57,159,228,671.01 - Step 5: Solve for x
x = 57,159,228,671.01/276,905.19 - Step 6: Final answer
x = 206,421.66
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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.