Finding the Fourth Proportional to 185,319.91, 278,287.40 and 115,642.09
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Solution
The fourth proportional to 185,319.91, 278,287.40 and 115,642.09 is: 173,655.04
Step by Step Solution
- Step 1: Write the proportion equation
185,319.91 : 278,287.40 = 115,642.09 : x - Step 2: Convert to fraction form
185,319.91/278,287.40 = 115,642.09/x - Step 3: Cross multiply
185,319.91x = 278,287.40 × 115,642.09 - Step 4: Simplify right side
185,319.91x = 32,181,736,556.67 - Step 5: Solve for x
x = 32,181,736,556.67/185,319.91 - Step 6: Final answer
x = 173,655.04
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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.