Finding the Fourth Proportional to 276,911.64, 382,138.05 and 149,587.23
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Solution
The fourth proportional to 276,911.64, 382,138.05 and 149,587.23 is: 206,430.37
Step by Step Solution
- Step 1: Write the proportion equation
276,911.64 : 382,138.05 = 149,587.23 : x - Step 2: Convert to fraction form
276,911.64/382,138.05 = 149,587.23/x - Step 3: Cross multiply
276,911.64x = 382,138.05 × 149,587.23 - Step 4: Simplify right side
276,911.64x = 57,162,972,377.10 - Step 5: Solve for x
x = 57,162,972,377.10/276,911.64 - Step 6: Final answer
x = 206,430.37
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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.