Finding the Fourth Proportional to 249,630.36, 344,492.19 and 142,198.80
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Solution
The fourth proportional to 249,630.36, 344,492.19 and 142,198.80 is: 196,235.65
Step by Step Solution
- Step 1: Write the proportion equation
249,630.36 : 344,492.19 = 142,198.80 : x - Step 2: Convert to fraction form
249,630.36/344,492.19 = 142,198.80/x - Step 3: Cross multiply
249,630.36x = 344,492.19 × 142,198.80 - Step 4: Simplify right side
249,630.36x = 48,986,376,027.37 - Step 5: Solve for x
x = 48,986,376,027.37/249,630.36 - Step 6: Final answer
x = 196,235.65
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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.