Finding the Fourth Proportional to 249,176.88, 343,867.68 and 135,997.20
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Solution
The fourth proportional to 249,176.88, 343,867.68 and 135,997.20 is: 187,678.09
Step by Step Solution
- Step 1: Write the proportion equation
249,176.88 : 343,867.68 = 135,997.20 : x - Step 2: Convert to fraction form
249,176.88/343,867.68 = 135,997.20/x - Step 3: Cross multiply
249,176.88x = 343,867.68 × 135,997.20 - Step 4: Simplify right side
249,176.88x = 46,765,041,650.50 - Step 5: Solve for x
x = 46,765,041,650.50/249,176.88 - Step 6: Final answer
x = 187,678.09
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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.