Finding the Fourth Proportional to 371,831.40, 513,125.92 and 210,717.12
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Solution
The fourth proportional to 371,831.40, 513,125.92 and 210,717.12 is: 290,788.83
Step by Step Solution
- Step 1: Write the proportion equation
371,831.40 : 513,125.92 = 210,717.12 : x - Step 2: Convert to fraction form
371,831.40/513,125.92 = 210,717.12/x - Step 3: Cross multiply
371,831.40x = 513,125.92 × 210,717.12 - Step 4: Simplify right side
371,831.40x = 108,124,416,059.75 - Step 5: Solve for x
x = 108,124,416,059.75/371,831.40 - Step 6: Final answer
x = 290,788.83
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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.