Finding the Fourth Proportional to 276,391.28, 413,922.56 and 157,702.79
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Solution
The fourth proportional to 276,391.28, 413,922.56 and 157,702.79 is: 236,175.11
Step by Step Solution
- Step 1: Write the proportion equation
276,391.28 : 413,922.56 = 157,702.79 : x - Step 2: Convert to fraction form
276,391.28/413,922.56 = 157,702.79/x - Step 3: Cross multiply
276,391.28x = 413,922.56 × 157,702.79 - Step 4: Simplify right side
276,391.28x = 65,276,742,802.23 - Step 5: Solve for x
x = 65,276,742,802.23/276,391.28 - Step 6: Final answer
x = 236,175.11
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.