Finding the Fourth Proportional to 278,574.88, 384,422.64 and 151,247.68
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Solution
The fourth proportional to 278,574.88, 384,422.64 and 151,247.68 is: 208,715.99
Step by Step Solution
- Step 1: Write the proportion equation
278,574.88 : 384,422.64 = 151,247.68 : x - Step 2: Convert to fraction form
278,574.88/384,422.64 = 151,247.68/x - Step 3: Cross multiply
278,574.88x = 384,422.64 × 151,247.68 - Step 4: Simplify right side
278,574.88x = 58,143,032,439.48 - Step 5: Solve for x
x = 58,143,032,439.48/278,574.88 - Step 6: Final answer
x = 208,715.99
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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.