Finding the Fourth Proportional to 396,320.63, 594,356.05 and 130,019.09
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Solution
The fourth proportional to 396,320.63, 594,356.05 and 130,019.09 is: 194,987.66
Step by Step Solution
- Step 1: Write the proportion equation
396,320.63 : 594,356.05 = 130,019.09 : x - Step 2: Convert to fraction form
396,320.63/594,356.05 = 130,019.09/x - Step 3: Cross multiply
396,320.63x = 594,356.05 × 130,019.09 - Step 4: Simplify right side
396,320.63x = 77,277,632,756.99 - Step 5: Solve for x
x = 77,277,632,756.99/396,320.63 - Step 6: Final answer
x = 194,987.66
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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.