Finding the Fourth Proportional to 245,656.06, 339,004.74 and 138,226.21
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Solution
The fourth proportional to 245,656.06, 339,004.74 and 138,226.21 is: 190,751.82
Step by Step Solution
- Step 1: Write the proportion equation
245,656.06 : 339,004.74 = 138,226.21 : x - Step 2: Convert to fraction form
245,656.06/339,004.74 = 138,226.21/x - Step 3: Cross multiply
245,656.06x = 339,004.74 × 138,226.21 - Step 4: Simplify right side
245,656.06x = 46,859,340,382.24 - Step 5: Solve for x
x = 46,859,340,382.24/245,656.06 - Step 6: Final answer
x = 190,751.82
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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.