Finding the Fourth Proportional to 210,440.99, 290,406.84 and 114,947.75
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Solution
The fourth proportional to 210,440.99, 290,406.84 and 114,947.75 is: 158,626.95
Step by Step Solution
- Step 1: Write the proportion equation
210,440.99 : 290,406.84 = 114,947.75 : x - Step 2: Convert to fraction form
210,440.99/290,406.84 = 114,947.75/x - Step 3: Cross multiply
210,440.99x = 290,406.84 × 114,947.75 - Step 4: Simplify right side
210,440.99x = 33,381,612,842.61 - Step 5: Solve for x
x = 33,381,612,842.61/210,440.99 - Step 6: Final answer
x = 158,626.95
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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.