Finding the Fourth Proportional to 375,623.38, 518,302.92 and 212,220.26
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Solution
The fourth proportional to 375,623.38, 518,302.92 and 212,220.26 is: 292,831.56
Step by Step Solution
- Step 1: Write the proportion equation
375,623.38 : 518,302.92 = 212,220.26 : x - Step 2: Convert to fraction form
375,623.38/518,302.92 = 212,220.26/x - Step 3: Cross multiply
375,623.38x = 518,302.92 × 212,220.26 - Step 4: Simplify right side
375,623.38x = 109,994,380,589.11 - Step 5: Solve for x
x = 109,994,380,589.11/375,623.38 - Step 6: Final answer
x = 292,831.56
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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.