Finding the Fourth Proportional to 249,490.14, 344,295.80 and 136,313.70
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Solution
The fourth proportional to 249,490.14, 344,295.80 and 136,313.70 is: 188,112.58
Step by Step Solution
- Step 1: Write the proportion equation
249,490.14 : 344,295.80 = 136,313.70 : x - Step 2: Convert to fraction form
249,490.14/344,295.80 = 136,313.70/x - Step 3: Cross multiply
249,490.14x = 344,295.80 × 136,313.70 - Step 4: Simplify right side
249,490.14x = 46,932,234,392.46 - Step 5: Solve for x
x = 46,932,234,392.46/249,490.14 - Step 6: Final answer
x = 188,112.58
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1.5x scale
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.