Finding the Fourth Proportional to 320,418.81, 480,661.07 and 120,907.08
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Solution
The fourth proportional to 320,418.81, 480,661.07 and 120,907.08 is: 181,373.02
Step by Step Solution
- Step 1: Write the proportion equation
320,418.81 : 480,661.07 = 120,907.08 : x - Step 2: Convert to fraction form
320,418.81/480,661.07 = 120,907.08/x - Step 3: Cross multiply
320,418.81x = 480,661.07 × 120,907.08 - Step 4: Simplify right side
320,418.81x = 58,115,325,838.84 - Step 5: Solve for x
x = 58,115,325,838.84/320,418.81 - Step 6: Final answer
x = 181,373.02
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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.