Finding the Fourth Proportional to 425,395.74, 638,195.44 and 121,794.12
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Solution
The fourth proportional to 425,395.74, 638,195.44 and 121,794.12 is: 182,720.33
Step by Step Solution
- Step 1: Write the proportion equation
425,395.74 : 638,195.44 = 121,794.12 : x - Step 2: Convert to fraction form
425,395.74/638,195.44 = 121,794.12/x - Step 3: Cross multiply
425,395.74x = 638,195.44 × 121,794.12 - Step 4: Simplify right side
425,395.74x = 77,728,452,002.81 - Step 5: Solve for x
x = 77,728,452,002.81/425,395.74 - Step 6: Final answer
x = 182,720.33
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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.