Finding the Fourth Proportional to 290,202.60, 435,323.40 and 103,163.88
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Solution
The fourth proportional to 290,202.60, 435,323.40 and 103,163.88 is: 154,752.75
Step by Step Solution
- Step 1: Write the proportion equation
290,202.60 : 435,323.40 = 103,163.88 : x - Step 2: Convert to fraction form
290,202.60/435,323.40 = 103,163.88/x - Step 3: Cross multiply
290,202.60x = 435,323.40 × 103,163.88 - Step 4: Simplify right side
290,202.60x = 44,909,650,998.79 - Step 5: Solve for x
x = 44,909,650,998.79/290,202.60 - Step 6: Final answer
x = 154,752.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.