Finding the Fourth Proportional to 276,439.36, 381,486.88 and 157,207.36
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Solution
The fourth proportional to 276,439.36, 381,486.88 and 157,207.36 is: 216,946.48
Step by Step Solution
- Step 1: Write the proportion equation
276,439.36 : 381,486.88 = 157,207.36 : x - Step 2: Convert to fraction form
276,439.36/381,486.88 = 157,207.36/x - Step 3: Cross multiply
276,439.36x = 381,486.88 × 157,207.36 - Step 4: Simplify right side
276,439.36x = 59,972,545,279.44 - Step 5: Solve for x
x = 59,972,545,279.44/276,439.36 - Step 6: Final answer
x = 216,946.48
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1.5x scale
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.