Finding the Fourth Proportional to 290,463.44, 435,865.69 and 121,970.80
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Solution
The fourth proportional to 290,463.44, 435,865.69 and 121,970.80 is: 183,027.80
Step by Step Solution
- Step 1: Write the proportion equation
290,463.44 : 435,865.69 = 121,970.80 : x - Step 2: Convert to fraction form
290,463.44/435,865.69 = 121,970.80/x - Step 3: Cross multiply
290,463.44x = 435,865.69 × 121,970.80 - Step 4: Simplify right side
290,463.44x = 53,162,884,722.52 - Step 5: Solve for x
x = 53,162,884,722.52/290,463.44 - Step 6: Final answer
x = 183,027.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.