Finding the Fourth Proportional to 276,838.24, 415,257.36 and 77,159.20
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Solution
The fourth proportional to 276,838.24, 415,257.36 and 77,159.20 is: 115,738.80
Step by Step Solution
- Step 1: Write the proportion equation
276,838.24 : 415,257.36 = 77,159.20 : x - Step 2: Convert to fraction form
276,838.24/415,257.36 = 77,159.20/x - Step 3: Cross multiply
276,838.24x = 415,257.36 × 77,159.20 - Step 4: Simplify right side
276,838.24x = 32,040,925,691.71 - Step 5: Solve for x
x = 32,040,925,691.71/276,838.24 - Step 6: Final answer
x = 115,738.80
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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.