Finding the Fourth Proportional to 290,835.06, 401,344.53 and 163,518.84
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Solution
The fourth proportional to 290,835.06, 401,344.53 and 163,518.84 is: 225,651.58
Step by Step Solution
- Step 1: Write the proportion equation
290,835.06 : 401,344.53 = 163,518.84 : x - Step 2: Convert to fraction form
290,835.06/401,344.53 = 163,518.84/x - Step 3: Cross multiply
290,835.06x = 401,344.53 × 163,518.84 - Step 4: Simplify right side
290,835.06x = 65,627,391,985.95 - Step 5: Solve for x
x = 65,627,391,985.95/290,835.06 - Step 6: Final answer
x = 225,651.58
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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.