Finding the Fourth Proportional to 278,429.79, 417,378.15 and 88,785.63
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Solution
The fourth proportional to 278,429.79, 417,378.15 and 88,785.63 is: 133,093.45
Step by Step Solution
- Step 1: Write the proportion equation
278,429.79 : 417,378.15 = 88,785.63 : x - Step 2: Convert to fraction form
278,429.79/417,378.15 = 88,785.63/x - Step 3: Cross multiply
278,429.79x = 417,378.15 × 88,785.63 - Step 4: Simplify right side
278,429.79x = 37,057,181,995.98 - Step 5: Solve for x
x = 37,057,181,995.98/278,429.79 - Step 6: Final answer
x = 133,093.45
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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.