Finding the Fourth Proportional to 210,331.97, 290,283.59 and 119,709.98
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Solution
The fourth proportional to 210,331.97, 290,283.59 and 119,709.98 is: 165,214.27
Step by Step Solution
- Step 1: Write the proportion equation
210,331.97 : 290,283.59 = 119,709.98 : x - Step 2: Convert to fraction form
210,331.97/290,283.59 = 119,709.98/x - Step 3: Cross multiply
210,331.97x = 290,283.59 × 119,709.98 - Step 4: Simplify right side
210,331.97x = 34,749,842,753.23 - Step 5: Solve for x
x = 34,749,842,753.23/210,331.97 - Step 6: Final answer
x = 165,214.27
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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.