Finding the Fourth Proportional to 388,404.16, 582,637.68 and 107,921.44
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Solution
The fourth proportional to 388,404.16, 582,637.68 and 107,921.44 is: 161,890.90
Step by Step Solution
- Step 1: Write the proportion equation
388,404.16 : 582,637.68 = 107,921.44 : x - Step 2: Convert to fraction form
388,404.16/582,637.68 = 107,921.44/x - Step 3: Cross multiply
388,404.16x = 582,637.68 × 107,921.44 - Step 4: Simplify right side
388,404.16x = 62,879,097,423.86 - Step 5: Solve for x
x = 62,879,097,423.86/388,404.16 - Step 6: Final answer
x = 161,890.90
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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.