Finding the Fourth Proportional to 248,308.12, 342,671.34 and 135,137.08
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Solution
The fourth proportional to 248,308.12, 342,671.34 and 135,137.08 is: 186,492.51
Step by Step Solution
- Step 1: Write the proportion equation
248,308.12 : 342,671.34 = 135,137.08 : x - Step 2: Convert to fraction form
248,308.12/342,671.34 = 135,137.08/x - Step 3: Cross multiply
248,308.12x = 342,671.34 × 135,137.08 - Step 4: Simplify right side
248,308.12x = 46,307,604,287.29 - Step 5: Solve for x
x = 46,307,604,287.29/248,308.12 - Step 6: Final answer
x = 186,492.51
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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.