Finding the Fourth Proportional to 371,994.21, 513,392.14 and 210,831.96
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Solution
The fourth proportional to 371,994.21, 513,392.14 and 210,831.96 is: 290,970.84
Step by Step Solution
- Step 1: Write the proportion equation
371,994.21 : 513,392.14 = 210,831.96 : x - Step 2: Convert to fraction form
371,994.21/513,392.14 = 210,831.96/x - Step 3: Cross multiply
371,994.21x = 513,392.14 × 210,831.96 - Step 4: Simplify right side
371,994.21x = 108,239,468,030.75 - Step 5: Solve for x
x = 108,239,468,030.75/371,994.21 - Step 6: Final answer
x = 290,970.84
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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.