Finding the Fourth Proportional to 249,108.12, 343,765.98 and 135,928.92
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Solution
The fourth proportional to 249,108.12, 343,765.98 and 135,928.92 is: 187,580.15
Step by Step Solution
- Step 1: Write the proportion equation
249,108.12 : 343,765.98 = 135,928.92 : x - Step 2: Convert to fraction form
249,108.12/343,765.98 = 135,928.92/x - Step 3: Cross multiply
249,108.12x = 343,765.98 × 135,928.92 - Step 4: Simplify right side
249,108.12x = 46,727,738,394.14 - Step 5: Solve for x
x = 46,727,738,394.14/249,108.12 - Step 6: Final answer
x = 187,580.15
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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.