Finding the Fourth Proportional to 248,918.88, 343,533.97 and 153,423.12
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Solution
The fourth proportional to 248,918.88, 343,533.97 and 153,423.12 is: 211,739.88
Step by Step Solution
- Step 1: Write the proportion equation
248,918.88 : 343,533.97 = 153,423.12 : x - Step 2: Convert to fraction form
248,918.88/343,533.97 = 153,423.12/x - Step 3: Cross multiply
248,918.88x = 343,533.97 × 153,423.12 - Step 4: Simplify right side
248,918.88x = 52,706,053,503.39 - Step 5: Solve for x
x = 52,706,053,503.39/248,918.88 - Step 6: Final answer
x = 211,739.88
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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.