Finding the Fourth Proportional to 279,199.48, 418,640.08 and 190,560.28
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Solution
The fourth proportional to 279,199.48, 418,640.08 and 190,560.28 is: 285,731.80
Step by Step Solution
- Step 1: Write the proportion equation
279,199.48 : 418,640.08 = 190,560.28 : x - Step 2: Convert to fraction form
279,199.48/418,640.08 = 190,560.28/x - Step 3: Cross multiply
279,199.48x = 418,640.08 × 190,560.28 - Step 4: Simplify right side
279,199.48x = 79,776,170,864.02 - Step 5: Solve for x
x = 79,776,170,864.02/279,199.48 - Step 6: Final answer
x = 285,731.80
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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.