Finding the Fourth Proportional to 213,490.08, 320,235.12 and 55,717.17
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Solution
The fourth proportional to 213,490.08, 320,235.12 and 55,717.17 is: 83,575.75
Step by Step Solution
- Step 1: Write the proportion equation
213,490.08 : 320,235.12 = 55,717.17 : x - Step 2: Convert to fraction form
213,490.08/320,235.12 = 55,717.17/x - Step 3: Cross multiply
213,490.08x = 320,235.12 × 55,717.17 - Step 4: Simplify right side
213,490.08x = 17,842,593,420.13 - Step 5: Solve for x
x = 17,842,593,420.13/213,490.08 - Step 6: Final answer
x = 83,575.75
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.