Finding the Fourth Proportional to 249,649.99, 344,478.45 and 142,206.37
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Solution
The fourth proportional to 249,649.99, 344,478.45 and 142,206.37 is: 196,222.84
Step by Step Solution
- Step 1: Write the proportion equation
249,649.99 : 344,478.45 = 142,206.37 : x - Step 2: Convert to fraction form
249,649.99/344,478.45 = 142,206.37/x - Step 3: Cross multiply
249,649.99x = 344,478.45 × 142,206.37 - Step 4: Simplify right side
249,649.99x = 48,987,029,917.73 - Step 5: Solve for x
x = 48,987,029,917.73/249,649.99 - Step 6: Final answer
x = 196,222.84
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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.