Finding the Fourth Proportional to 248,398.12, 342,790.98 and 135,220.84
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Solution
The fourth proportional to 248,398.12, 342,790.98 and 135,220.84 is: 186,605.62
Step by Step Solution
- Step 1: Write the proportion equation
248,398.12 : 342,790.98 = 135,220.84 : x - Step 2: Convert to fraction form
248,398.12/342,790.98 = 135,220.84/x - Step 3: Cross multiply
248,398.12x = 342,790.98 × 135,220.84 - Step 4: Simplify right side
248,398.12x = 46,352,484,260.02 - Step 5: Solve for x
x = 46,352,484,260.02/248,398.12 - Step 6: Final answer
x = 186,605.62
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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.