Finding the Fourth Proportional to 249,629.70, 344,448.69 and 142,201.80
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Solution
The fourth proportional to 249,629.70, 344,448.69 and 142,201.80 is: 196,215.53
Step by Step Solution
- Step 1: Write the proportion equation
249,629.70 : 344,448.69 = 142,201.80 : x - Step 2: Convert to fraction form
249,629.70/344,448.69 = 142,201.80/x - Step 3: Cross multiply
249,629.70x = 344,448.69 × 142,201.80 - Step 4: Simplify right side
249,629.70x = 48,981,223,725.64 - Step 5: Solve for x
x = 48,981,223,725.64/249,629.70 - Step 6: Final answer
x = 196,215.53
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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.