Finding the Fourth Proportional to 249,141.69, 343,815.44 and 135,964.44
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Solution
The fourth proportional to 249,141.69, 343,815.44 and 135,964.44 is: 187,630.87
Step by Step Solution
- Step 1: Write the proportion equation
249,141.69 : 343,815.44 = 135,964.44 : x - Step 2: Convert to fraction form
249,141.69/343,815.44 = 135,964.44/x - Step 3: Cross multiply
249,141.69x = 343,815.44 × 135,964.44 - Step 4: Simplify right side
249,141.69x = 46,746,673,083.13 - Step 5: Solve for x
x = 46,746,673,083.13/249,141.69 - Step 6: Final answer
x = 187,630.87
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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.