Finding the Fourth Proportional to 284,616.19, 426,923.87 and 74,254.13
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Solution
The fourth proportional to 284,616.19, 426,923.87 and 74,254.13 is: 111,381.09
Step by Step Solution
- Step 1: Write the proportion equation
284,616.19 : 426,923.87 = 74,254.13 : x - Step 2: Convert to fraction form
284,616.19/426,923.87 = 74,254.13/x - Step 3: Cross multiply
284,616.19x = 426,923.87 × 74,254.13 - Step 4: Simplify right side
284,616.19x = 31,700,860,171.81 - Step 5: Solve for x
x = 31,700,860,171.81/284,616.19 - Step 6: Final answer
x = 111,381.09
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1.5x scale
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.