Finding the Fourth Proportional to 249,609.40, 344,460.36 and 136,432.96
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Solution
The fourth proportional to 249,609.40, 344,460.36 and 136,432.96 is: 188,277.15
Step by Step Solution
- Step 1: Write the proportion equation
249,609.40 : 344,460.36 = 136,432.96 : x - Step 2: Convert to fraction form
249,609.40/344,460.36 = 136,432.96/x - Step 3: Cross multiply
249,609.40x = 344,460.36 × 136,432.96 - Step 4: Simplify right side
249,609.40x = 46,995,746,517.47 - Step 5: Solve for x
x = 46,995,746,517.47/249,609.40 - Step 6: Final answer
x = 188,277.15
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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.