Finding the Fourth Proportional to 248,866.29, 343,431.09 and 135,689.04
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Solution
The fourth proportional to 248,866.29, 343,431.09 and 135,689.04 is: 187,248.48
Step by Step Solution
- Step 1: Write the proportion equation
248,866.29 : 343,431.09 = 135,689.04 : x - Step 2: Convert to fraction form
248,866.29/343,431.09 = 135,689.04/x - Step 3: Cross multiply
248,866.29x = 343,431.09 × 135,689.04 - Step 4: Simplify right side
248,866.29x = 46,599,834,908.25 - Step 5: Solve for x
x = 46,599,834,908.25/248,866.29 - Step 6: Final answer
x = 187,248.48
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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.