Finding the Fourth Proportional to 289,613.88, 434,421.23 and 121,041.95
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Solution
The fourth proportional to 289,613.88, 434,421.23 and 121,041.95 is: 181,563.09
Step by Step Solution
- Step 1: Write the proportion equation
289,613.88 : 434,421.23 = 121,041.95 : x - Step 2: Convert to fraction form
289,613.88/434,421.23 = 121,041.95/x - Step 3: Cross multiply
289,613.88x = 434,421.23 × 121,041.95 - Step 4: Simplify right side
289,613.88x = 52,583,190,023.28 - Step 5: Solve for x
x = 52,583,190,023.28/289,613.88 - Step 6: Final answer
x = 181,563.09
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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.