Finding the Fourth Proportional to 210,627.29, 290,631.74 and 119,985.05
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Solution
The fourth proportional to 210,627.29, 290,631.74 and 119,985.05 is: 165,560.05
Step by Step Solution
- Step 1: Write the proportion equation
210,627.29 : 290,631.74 = 119,985.05 : x - Step 2: Convert to fraction form
210,627.29/290,631.74 = 119,985.05/x - Step 3: Cross multiply
210,627.29x = 290,631.74 × 119,985.05 - Step 4: Simplify right side
210,627.29x = 34,871,463,855.49 - Step 5: Solve for x
x = 34,871,463,855.49/210,627.29 - Step 6: Final answer
x = 165,560.05
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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.