Finding the Fourth Proportional to 249,087.60, 343,739.16 and 135,907.92
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Solution
The fourth proportional to 249,087.60, 343,739.16 and 135,907.92 is: 187,551.99
Step by Step Solution
- Step 1: Write the proportion equation
249,087.60 : 343,739.16 = 135,907.92 : x - Step 2: Convert to fraction form
249,087.60/343,739.16 = 135,907.92/x - Step 3: Cross multiply
249,087.60x = 343,739.16 × 135,907.92 - Step 4: Simplify right side
249,087.60x = 46,716,874,258.15 - Step 5: Solve for x
x = 46,716,874,258.15/249,087.60 - Step 6: Final answer
x = 187,551.99
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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.