Finding the Fourth Proportional to 276,911.79, 382,138.27 and 149,587.38
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Solution
The fourth proportional to 276,911.79, 382,138.27 and 149,587.38 is: 206,430.59
Step by Step Solution
- Step 1: Write the proportion equation
276,911.79 : 382,138.27 = 149,587.38 : x - Step 2: Convert to fraction form
276,911.79/382,138.27 = 149,587.38/x - Step 3: Cross multiply
276,911.79x = 382,138.27 × 149,587.38 - Step 4: Simplify right side
276,911.79x = 57,163,063,518.19 - Step 5: Solve for x
x = 57,163,063,518.19/276,911.79 - Step 6: Final answer
x = 206,430.59
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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.