Finding the Fourth Proportional to 279,984.42, 386,370.09 and 152,662.50
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Solution
The fourth proportional to 279,984.42, 386,370.09 and 152,662.50 is: 210,669.66
Step by Step Solution
- Step 1: Write the proportion equation
279,984.42 : 386,370.09 = 152,662.50 : x - Step 2: Convert to fraction form
279,984.42/386,370.09 = 152,662.50/x - Step 3: Cross multiply
279,984.42x = 386,370.09 × 152,662.50 - Step 4: Simplify right side
279,984.42x = 58,984,223,864.63 - Step 5: Solve for x
x = 58,984,223,864.63/279,984.42 - Step 6: Final answer
x = 210,669.66
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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.