Finding the Fourth Proportional to 386,980.92, 534,030.84 and 212,554.08
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Solution
The fourth proportional to 386,980.92, 534,030.84 and 212,554.08 is: 293,323.08
Step by Step Solution
- Step 1: Write the proportion equation
386,980.92 : 534,030.84 = 212,554.08 : x - Step 2: Convert to fraction form
386,980.92/534,030.84 = 212,554.08/x - Step 3: Cross multiply
386,980.92x = 534,030.84 × 212,554.08 - Step 4: Simplify right side
386,980.92x = 113,510,433,887.83 - Step 5: Solve for x
x = 113,510,433,887.83/386,980.92 - Step 6: Final answer
x = 293,323.08
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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.