Finding the Fourth Proportional to 276,963.48, 382,209.12 and 149,638.68
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Solution
The fourth proportional to 276,963.48, 382,209.12 and 149,638.68 is: 206,501.12
Step by Step Solution
- Step 1: Write the proportion equation
276,963.48 : 382,209.12 = 149,638.68 : x - Step 2: Convert to fraction form
276,963.48/382,209.12 = 149,638.68/x - Step 3: Cross multiply
276,963.48x = 382,209.12 × 149,638.68 - Step 4: Simplify right side
276,963.48x = 57,193,268,200.76 - Step 5: Solve for x
x = 57,193,268,200.76/276,963.48 - Step 6: Final answer
x = 206,501.12
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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.