Finding the Fourth Proportional to 279,515.39, 385,727.40 and 152,190.99
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Solution
The fourth proportional to 279,515.39, 385,727.40 and 152,190.99 is: 210,021.48
Step by Step Solution
- Step 1: Write the proportion equation
279,515.39 : 385,727.40 = 152,190.99 : x - Step 2: Convert to fraction form
279,515.39/385,727.40 = 152,190.99/x - Step 3: Cross multiply
279,515.39x = 385,727.40 × 152,190.99 - Step 4: Simplify right side
279,515.39x = 58,704,234,876.13 - Step 5: Solve for x
x = 58,704,234,876.13/279,515.39 - Step 6: Final answer
x = 210,021.48
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.