Finding the Fourth Proportional to 276,438.13, 414,657.36 and 76,758.52
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Solution
The fourth proportional to 276,438.13, 414,657.36 and 76,758.52 is: 115,137.82
Step by Step Solution
- Step 1: Write the proportion equation
276,438.13 : 414,657.36 = 76,758.52 : x - Step 2: Convert to fraction form
276,438.13/414,657.36 = 76,758.52/x - Step 3: Cross multiply
276,438.13x = 414,657.36 × 76,758.52 - Step 4: Simplify right side
276,438.13x = 31,828,485,001.55 - Step 5: Solve for x
x = 31,828,485,001.55/276,438.13 - Step 6: Final answer
x = 115,137.82
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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.