Finding the Fourth Proportional to 278,933.58, 418,165.26 and 121,043.12
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Solution
The fourth proportional to 278,933.58, 418,165.26 and 121,043.12 is: 181,462.65
Step by Step Solution
- Step 1: Write the proportion equation
278,933.58 : 418,165.26 = 121,043.12 : x - Step 2: Convert to fraction form
278,933.58/418,165.26 = 121,043.12/x - Step 3: Cross multiply
278,933.58x = 418,165.26 × 121,043.12 - Step 4: Simplify right side
278,933.58x = 50,616,027,746.01 - Step 5: Solve for x
x = 50,616,027,746.01/278,933.58 - Step 6: Final answer
x = 181,462.65
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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.