Finding the Fourth Proportional to 210,974.32, 291,144.99 and 115,487.11
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Solution
The fourth proportional to 210,974.32, 291,144.99 and 115,487.11 is: 159,372.45
Step by Step Solution
- Step 1: Write the proportion equation
210,974.32 : 291,144.99 = 115,487.11 : x - Step 2: Convert to fraction form
210,974.32/291,144.99 = 115,487.11/x - Step 3: Cross multiply
210,974.32x = 291,144.99 × 115,487.11 - Step 4: Simplify right side
210,974.32x = 33,623,493,486.08 - Step 5: Solve for x
x = 33,623,493,486.08/210,974.32 - Step 6: Final answer
x = 159,372.45
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1.5x scale
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.