Finding the Fourth Proportional to 249,131.52, 343,808.80 and 135,961.60
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Solution
The fourth proportional to 249,131.52, 343,808.80 and 135,961.60 is: 187,630.99
Step by Step Solution
- Step 1: Write the proportion equation
249,131.52 : 343,808.80 = 135,961.60 : x - Step 2: Convert to fraction form
249,131.52/343,808.80 = 135,961.60/x - Step 3: Cross multiply
249,131.52x = 343,808.80 × 135,961.60 - Step 4: Simplify right side
249,131.52x = 46,744,794,542.08 - Step 5: Solve for x
x = 46,744,794,542.08/249,131.52 - Step 6: Final answer
x = 187,630.99
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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.