Finding the Fourth Proportional to 394,674.13, 592,009.80 and 141,954.19
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Solution
The fourth proportional to 394,674.13, 592,009.80 and 141,954.19 is: 212,930.78
Step by Step Solution
- Step 1: Write the proportion equation
394,674.13 : 592,009.80 = 141,954.19 : x - Step 2: Convert to fraction form
394,674.13/592,009.80 = 141,954.19/x - Step 3: Cross multiply
394,674.13x = 592,009.80 × 141,954.19 - Step 4: Simplify right side
394,674.13x = 84,038,271,631.06 - Step 5: Solve for x
x = 84,038,271,631.06/394,674.13 - Step 6: Final answer
x = 212,930.78
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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.