Finding the Fourth Proportional to 278,288.24, 417,344.76 and 91,256.08
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Solution
The fourth proportional to 278,288.24, 417,344.76 and 91,256.08 is: 136,855.39
Step by Step Solution
- Step 1: Write the proportion equation
278,288.24 : 417,344.76 = 91,256.08 : x - Step 2: Convert to fraction form
278,288.24/417,344.76 = 91,256.08/x - Step 3: Cross multiply
278,288.24x = 417,344.76 × 91,256.08 - Step 4: Simplify right side
278,288.24x = 38,085,246,806.14 - Step 5: Solve for x
x = 38,085,246,806.14/278,288.24 - Step 6: Final answer
x = 136,855.39
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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.